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2014 Vol. 36, No. 1
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2014, 36(1): 1-7.
doi: 10.3724/SP.J.1146.2013.00503
Abstract:
In-network caching is one of the key aspects of Content Centric Networking (CCN), which is widely concerned recently. However, the ALWAYS caching scheme (caching everywhere on the delivery path) in CCN produces a great of redundancy, while the Betw s...
In-network caching is one of the key aspects of Content Centric Networking (CCN), which is widely concerned recently. However, the ALWAYS caching scheme (caching everywhere on the delivery path) in CCN produces a great of redundancy, while the Betw s...
2014, 36(1): 8-14.
doi: 10.3724/SP.J.1146.2012.00933
Abstract:
A Cluster-based Data Aggregation Algorithm (CDAA) for Wireless Multimedia Sensor Networks (WMSNs) is proposed. CDAA extends effectively the network life cycle by a new clustering method and a data aggregation scheme based on the clustering method. Ac...
A Cluster-based Data Aggregation Algorithm (CDAA) for Wireless Multimedia Sensor Networks (WMSNs) is proposed. CDAA extends effectively the network life cycle by a new clustering method and a data aggregation scheme based on the clustering method. Ac...
2014, 36(1): 15-21.
doi: 10.3724/SP.J.1146.2013.00427
Abstract:
Considering Service Providers (SP) revenue optimization issue, a two-stage multi-virtual machine resource provisioning mechanism is proposed in this paper. Firstly, a capacity planning model is proposed and the particle swarm algorithm is used to mak...
Considering Service Providers (SP) revenue optimization issue, a two-stage multi-virtual machine resource provisioning mechanism is proposed in this paper. Firstly, a capacity planning model is proposed and the particle swarm algorithm is used to mak...
2014, 36(1): 22-26.
doi: 10.3724/SP.J.1146.2013.00466
Abstract:
There exist some defects such as low efficiency in the spending protocol and deposit protocol of the proposed by Izabachene et al. (2012) divisible E-cash system based on the standard model. Using the Groth-Sahai (GS) proof system and accumulator, th...
There exist some defects such as low efficiency in the spending protocol and deposit protocol of the proposed by Izabachene et al. (2012) divisible E-cash system based on the standard model. Using the Groth-Sahai (GS) proof system and accumulator, th...
2014, 36(1): 27-33.
doi: 10.3724/SP.J.1146.2013.00392
Abstract:
Cognitive sensor local information sparse representation and compressive measurement are investigated, which are conducted by Analog-to-Information Converters (AIC) at each sensor in Cognitive Wireless Sensor Networks (C-WSN). Gradient Projection Spa...
Cognitive sensor local information sparse representation and compressive measurement are investigated, which are conducted by Analog-to-Information Converters (AIC) at each sensor in Cognitive Wireless Sensor Networks (C-WSN). Gradient Projection Spa...
2014, 36(1): 34-40.
doi: 10.3724/SP.J.1146.2013.00155
Abstract:
Due to the limitation of the closed-form analysis of end-to-end delay in mobile ad hoc networks, this paper develops an effective modeling scheme for delay in the networks where the delivery is out-of-order and the two-hop relay algorithm with single...
Due to the limitation of the closed-form analysis of end-to-end delay in mobile ad hoc networks, this paper develops an effective modeling scheme for delay in the networks where the delivery is out-of-order and the two-hop relay algorithm with single...
2014, 36(1): 41-47.
doi: 10.3724/SP.J.1146.2013.00214
Abstract:
A fault location mechanism is proposed based on lightpath status aware using cluster allocation to solve the issues of long fault location time and high service dependence. According to the constraints of network clustering, two-layer network model i...
A fault location mechanism is proposed based on lightpath status aware using cluster allocation to solve the issues of long fault location time and high service dependence. According to the constraints of network clustering, two-layer network model i...
2014, 36(1): 48-54.
doi: 10.3724/SP.J.1146.2013.00382
Abstract:
Based on the group theory, the symmetries of mappings of Bit-Interleaved Coded Modulation (or with Iterative Decoding) systems (BICM(-ID)) are studied. Firstly, the definitions of the symmetries of mappings for BICM (-ID) are given. The symmetries of...
Based on the group theory, the symmetries of mappings of Bit-Interleaved Coded Modulation (or with Iterative Decoding) systems (BICM(-ID)) are studied. Firstly, the definitions of the symmetries of mappings for BICM (-ID) are given. The symmetries of...
2014, 36(1): 55-60.
doi: 10.3724/SP.J.1146.2013.00340
Abstract:
This paper studies the mathematical model of Multiband Joint Detection (MJD). The MJD problem can be formulated as a constrained optimization problem with the goal of maximizing the aggregated opportunistic throughput of a cognitive radio system unde...
This paper studies the mathematical model of Multiband Joint Detection (MJD). The MJD problem can be formulated as a constrained optimization problem with the goal of maximizing the aggregated opportunistic throughput of a cognitive radio system unde...
2014, 36(1): 61-66.
doi: 10.3724/SP.J.1146.2013.00461
Abstract:
Covariance matrix based spectrum sensing encounters performance degradation when there the antenna correlation is low. To overcome this drawback, a nonparametric cooperative spectrum sensing algorithm based on Friedman test is proposed. Distributed s...
Covariance matrix based spectrum sensing encounters performance degradation when there the antenna correlation is low. To overcome this drawback, a nonparametric cooperative spectrum sensing algorithm based on Friedman test is proposed. Distributed s...
2014, 36(1): 67-73.
doi: 10.3724/SP.J.1146.2013.00046
Abstract:
In this paper a proactive scheduling algorithm is proposed based on associative interference of spatial subchannels for MU-MIMO downlink (broadcast) channel. The strategy converts user scheduling into subchannel selection issue. With comprehensive co...
In this paper a proactive scheduling algorithm is proposed based on associative interference of spatial subchannels for MU-MIMO downlink (broadcast) channel. The strategy converts user scheduling into subchannel selection issue. With comprehensive co...
2014, 36(1): 74-81.
doi: 10.3724/SP.J.1146.2013.00416
Abstract:
This paper discusses the dynamic S-boxes using the combination of inversion mapping and an affine transformation over the finite field. First, a definition of differential probability for dynamic S-box is provided. Necessary and sufficient conditions...
This paper discusses the dynamic S-boxes using the combination of inversion mapping and an affine transformation over the finite field. First, a definition of differential probability for dynamic S-box is provided. Necessary and sufficient conditions...
2014, 36(1): 82-87.
doi: 10.3724/SP.J.1146.2013.00283
Abstract:
The SNOW family is a main trend of the design of the stream cipher. Because of the security vulnerabilities of the SNOW family, this paper selects SNOW 2.0 algorithm which is the most representative of the family as a research object. Three core comp...
The SNOW family is a main trend of the design of the stream cipher. Because of the security vulnerabilities of the SNOW family, this paper selects SNOW 2.0 algorithm which is the most representative of the family as a research object. Three core comp...
2014, 36(1): 88-93.
doi: 10.3724/SP.J.1146.2013.00332
Abstract:
A novel chaotic circuit with a single bifurcation parameter is presented in this paper. The circuit is composed of a Wien-Bridge oscillator and a piecewise-linear memristor. By adjusting the system parameter, the proposed circuit performs chaotic and...
A novel chaotic circuit with a single bifurcation parameter is presented in this paper. The circuit is composed of a Wien-Bridge oscillator and a piecewise-linear memristor. By adjusting the system parameter, the proposed circuit performs chaotic and...
2014, 36(1): 94-100.
doi: 10.3724/SP.J.1146.2013.00342
Abstract:
This paper presents an efficient anonymous message authentication scheme for vehicular ad hoc networks. By using identity-based sign-encryption technique, a vehicular user can first authenticate with a region center to obtain a group signature key ma...
This paper presents an efficient anonymous message authentication scheme for vehicular ad hoc networks. By using identity-based sign-encryption technique, a vehicular user can first authenticate with a region center to obtain a group signature key ma...
2014, 36(1): 101-107.
doi: 10.3724/SP.J.1146.2013.00193
Abstract:
To evaluate Piccolos security against Power Analysis Attack (PAA), a cipher text attack model is proposed and Correlation Power Analysis (CPA) is conducted on this cipher implementation with measured power traces based on Side-channel Attack Standard...
To evaluate Piccolos security against Power Analysis Attack (PAA), a cipher text attack model is proposed and Correlation Power Analysis (CPA) is conducted on this cipher implementation with measured power traces based on Side-channel Attack Standard...
2014, 36(1): 108-113.
doi: 10.3724/SP.J.1146.2012.01491
Abstract:
The method using the decision tree for script virus detection can make full use of the information of training samples. But complex sample features and large number of samples will produce large number of nodes which result in the high algorithm time...
The method using the decision tree for script virus detection can make full use of the information of training samples. But complex sample features and large number of samples will produce large number of nodes which result in the high algorithm time...
2014, 36(1): 114-120.
doi: 10.3724/SP.J.1146.2013.00443
Abstract:
A new steganalytic scheme of color JPEG images is proposed based on YCbCr color space. The features of the proposed scheme include intra-channel features and inter-channel features. The intra-channel features are formed by Markov features, extended D...
A new steganalytic scheme of color JPEG images is proposed based on YCbCr color space. The features of the proposed scheme include intra-channel features and inter-channel features. The intra-channel features are formed by Markov features, extended D...
2014, 36(1): 121-127.
doi: 10.3724/SP.J.1146.2013.00303
Abstract:
A DNA sequence compression method based on Collaborative Particle swarm optimization-based Memetic Algorithm (CPMA) is proposed. CPMA adopts the Comprehensive Learning Particle Swarm Optimization (CLPSO) as the global search and a Dynamic Adjustive C...
A DNA sequence compression method based on Collaborative Particle swarm optimization-based Memetic Algorithm (CPMA) is proposed. CPMA adopts the Comprehensive Learning Particle Swarm Optimization (CLPSO) as the global search and a Dynamic Adjustive C...
2014, 36(1): 128-134.
doi: 10.3724/SP.J.1146.2013.00297
Abstract:
As the traditional quantized asynchronous randomized gossip consensus algorithm is based on uniform selection probability time mode, the impact of network topology on local information transfer is not been fully considered. Thus, an improved quantize...
As the traditional quantized asynchronous randomized gossip consensus algorithm is based on uniform selection probability time mode, the impact of network topology on local information transfer is not been fully considered. Thus, an improved quantize...
2014, 36(1): 135-139.
doi: 10.3724/SP.J.1146.2013.00756
Abstract:
For the issue of aperture loss appears when localizing near-field sources, a novel near-field source localization algorithm is presented. The algorithm is based on the co-prime symmetric array, thus the intersensor spacing need not be limited to quar...
For the issue of aperture loss appears when localizing near-field sources, a novel near-field source localization algorithm is presented. The algorithm is based on the co-prime symmetric array, thus the intersensor spacing need not be limited to quar...
2014, 36(1): 140-146.
doi: 10.3724/SP.J.1146.2013.00422
Abstract:
The existing lattice generation algorithms have no exact word end time because the Weighted Finite State Transducer (WFST) decoding networks have no word end node. An algorithm is proposed to generate the standard speech recognition lattice within th...
The existing lattice generation algorithms have no exact word end time because the Weighted Finite State Transducer (WFST) decoding networks have no word end node. An algorithm is proposed to generate the standard speech recognition lattice within th...
2014, 36(1): 147-151.
doi: 10.3724/SP.J.1146.2013.00472
Abstract:
A method of multichannel joint frequency and Direction Of Arrival (DOA) estimation is proposed for the signal with wide frequency band. Under the condition of sub-Nyquist spatio-temporal sampling, the method can provide unambiguous frequency and DOA ...
A method of multichannel joint frequency and Direction Of Arrival (DOA) estimation is proposed for the signal with wide frequency band. Under the condition of sub-Nyquist spatio-temporal sampling, the method can provide unambiguous frequency and DOA ...
2014, 36(1): 152-157.
doi: 10.3724/SP.J.1146.2013.00476
Abstract:
To reduce the sampling rate in chaotic modulation, this paper proposes a multi-channel chaotic modulation Analog-to-Information Conversion (AIC) structure. The proposed structure samples multiple-channel state outputs of parameter-modulation chaotic ...
To reduce the sampling rate in chaotic modulation, this paper proposes a multi-channel chaotic modulation Analog-to-Information Conversion (AIC) structure. The proposed structure samples multiple-channel state outputs of parameter-modulation chaotic ...
2014, 36(1): 158-163.
doi: 10.3724/SP.J.1146.2013.00463
Abstract:
A separation method of multiple signals from their superposition recorded at several sensors is addressed. The method employs polyspectra of the sensor data to extract the unknown signals and estimate the Finite Impulse Response (FIR) coupling system...
A separation method of multiple signals from their superposition recorded at several sensors is addressed. The method employs polyspectra of the sensor data to extract the unknown signals and estimate the Finite Impulse Response (FIR) coupling system...
2014, 36(1): 164-168.
doi: 10.3724/SP.J.1146.2013.00444
Abstract:
A novel method for parameters estimation of coherently distributed non-circular signal based on the concept of sparse representation is proposed. The non-circular property is introduced into the model of distributed source, and the non-circular prope...
A novel method for parameters estimation of coherently distributed non-circular signal based on the concept of sparse representation is proposed. The non-circular property is introduced into the model of distributed source, and the non-circular prope...
2014, 36(1): 169-174.
doi: 10.3724/SP.J.1146.2013.00023
Abstract:
Sparse random matrices have attractive properties, such as low storage requirement, low computational complexity in both encoding and recovery, easy incremental updates, and they show great advantages in distributed applications. To make sure sparse ...
Sparse random matrices have attractive properties, such as low storage requirement, low computational complexity in both encoding and recovery, easy incremental updates, and they show great advantages in distributed applications. To make sure sparse ...
2014, 36(1): 175-180.
doi: 10.3724/SP.J.1146.2013.00490
Abstract:
Keystone transform can be employed to eliminate the effects of linear range migration through resolution cells of moving targets during the coherent integration time of Pulse Doppler (PD) radar. However, with Doppler ambiguity, Half-Blind-Velocity Ef...
Keystone transform can be employed to eliminate the effects of linear range migration through resolution cells of moving targets during the coherent integration time of Pulse Doppler (PD) radar. However, with Doppler ambiguity, Half-Blind-Velocity Ef...
2014, 36(1): 181-186.
doi: 10.3724/SP.J.1146.2013.00320
Abstract:
Prior information can be used to improve detection performance of knowledge aided detectors, but the detection performance may be affected by the mismatches between the prior information and current clutter environment. In this paper, the knowledge a...
Prior information can be used to improve detection performance of knowledge aided detectors, but the detection performance may be affected by the mismatches between the prior information and current clutter environment. In this paper, the knowledge a...
2014, 36(1): 187-193.
doi: 10.3724/SP.J.1146.2012.01597
Abstract:
For ISAR imaging, the range and cross-range resolutions are constrained by the bandwidth of transmitted signal and Coherent Processing Interval (CPI). In this paper, a novel algorithm of Two-Dimension(2D) joint super-resolution ISAR imaging is addres...
For ISAR imaging, the range and cross-range resolutions are constrained by the bandwidth of transmitted signal and Coherent Processing Interval (CPI). In this paper, a novel algorithm of Two-Dimension(2D) joint super-resolution ISAR imaging is addres...
2014, 36(1): 194-201.
doi: 10.3724/SP.J.1146.2013.00264
Abstract:
Based on the electromagnetic scattering model, an algorithm of deception jamming for Inverse Synthetic Aperture Radar (ISAR) aerial target is proposed. The simulated data of electromagnetic model is utilized to modulate the ISAR echoes, and thus the ...
Based on the electromagnetic scattering model, an algorithm of deception jamming for Inverse Synthetic Aperture Radar (ISAR) aerial target is proposed. The simulated data of electromagnetic model is utilized to modulate the ISAR echoes, and thus the ...
2014, 36(1): 202-208.
doi: 10.3724/SP.J.1146.2012.01699
Abstract:
The eigenvector method for maximum-likelihood estimation of phase error can obtain ideal performance of phase error estimation by using the eigenvector corresponding to its largest eigenvalue. Although the method is accurate and robust, it requires e...
The eigenvector method for maximum-likelihood estimation of phase error can obtain ideal performance of phase error estimation by using the eigenvector corresponding to its largest eigenvalue. Although the method is accurate and robust, it requires e...
2014, 36(1): 209-214.
doi: 10.3724/SP.J.1146.2013.00384
Abstract:
The passive radar faces a significant problem in multipath clutter, and the Batch version of the Extensive Cancellation Algorithm (ECA-B) is an efficient method for clutter mitigation. However, the clutter and target echoes, whose delays are included...
The passive radar faces a significant problem in multipath clutter, and the Batch version of the Extensive Cancellation Algorithm (ECA-B) is an efficient method for clutter mitigation. However, the clutter and target echoes, whose delays are included...
2014, 36(1): 215-219.
doi: 10.3724/SP.J.1146.2013.00401
Abstract:
A 3-D space-time nonadaptive pre-filtering approach in airborne radar is proposed in this paper. It makes full use of predictable radar system and platform parameters such as airborne crab, Pulse Repetition Frequency (PRF) and interelement spacing, a...
A 3-D space-time nonadaptive pre-filtering approach in airborne radar is proposed in this paper. It makes full use of predictable radar system and platform parameters such as airborne crab, Pulse Repetition Frequency (PRF) and interelement spacing, a...
2014, 36(1): 220-227.
doi: 10.3724/SP.J.1146.2013.00228
Abstract:
In order to preserve the SAR image edge characteristics and improve the suppression performance of multiplicative speckle noise in SAR image, a new despeckling algorithm based on iterative direction filtering is proposed. Firstly, the ratio Edge Stre...
In order to preserve the SAR image edge characteristics and improve the suppression performance of multiplicative speckle noise in SAR image, a new despeckling algorithm based on iterative direction filtering is proposed. Firstly, the ratio Edge Stre...
2014, 36(1): 228-233.
doi: 10.3724/SP.J.1146.2013.00486
Abstract:
Wideband equiangular spiral antennas are typically applied to detection and tracing of passive radar seeker. In order to reduce the height of the equiangular spiral antenna, a low-profile slot equiangular spiral antenna fed by a microstrip to slotlin...
Wideband equiangular spiral antennas are typically applied to detection and tracing of passive radar seeker. In order to reduce the height of the equiangular spiral antenna, a low-profile slot equiangular spiral antenna fed by a microstrip to slotlin...
2014, 36(1): 234-240.
doi: 10.3724/SP.J.1146.2013.00449
Abstract:
In order to reduce effectively the hardware and timing overhead for circuit soft-error-tolerance, a hybrid hardening technique for soft error tolerance is proposed based on timing priority in this paper. A two-stage hardening strategy is exploitsed b...
In order to reduce effectively the hardware and timing overhead for circuit soft-error-tolerance, a hybrid hardening technique for soft error tolerance is proposed based on timing priority in this paper. A two-stage hardening strategy is exploitsed b...
2014, 36(1): 241-245.
doi: 10.3724/SP.J.1146.2013.00885
Abstract:
To support frequency selective scheduling in uplink, Long Term Evolution (LTE) system defines the Sounding Reference Signal (SRS) for channel quality estimation. This paper focuses on the Signal-to-Noise Ratio (SNR) estimation of the SRS. In order to...
To support frequency selective scheduling in uplink, Long Term Evolution (LTE) system defines the Sounding Reference Signal (SRS) for channel quality estimation. This paper focuses on the Signal-to-Noise Ratio (SNR) estimation of the SRS. In order to...
2014, 36(1): 246-249.
doi: 10.3724/SP.J.1146.2013.00323
Abstract:
This paper proposes a low-complexity Peak to Average Power Ratio (PAPR) reduction method in Orthogonal Frequency Division Multiplexing (OFDM) system based on the Fractional Fourier Transform (FrFT). The method reduces PAPR effectively through periodi...
This paper proposes a low-complexity Peak to Average Power Ratio (PAPR) reduction method in Orthogonal Frequency Division Multiplexing (OFDM) system based on the Fractional Fourier Transform (FrFT). The method reduces PAPR effectively through periodi...
2014, 36(1): 250-254.
doi: 10.3724/SP.J.1146.2013.00348
Abstract:
Since the traditional frequency-sweeping based Bio-Impedance Spectroscopy (BIS) measurement method can not reflect accurately the true impedance of organism, the development of multi-frequency simultaneous fast measurement method of BIS has significa...
Since the traditional frequency-sweeping based Bio-Impedance Spectroscopy (BIS) measurement method can not reflect accurately the true impedance of organism, the development of multi-frequency simultaneous fast measurement method of BIS has significa...
