A Novel Dual-band Femtocells Unlicensed Channel Access Mechanism

LIAO Shuri; HE Shiwen; YANG Luxi

doi:10.11999/JEIT170184

Volume 39 Issue 11

Nov. 2017

Turn off MathJax

Article Contents

Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(11): 2556-2562

LIAO Shuri, HE Shiwen, YANG Luxi. A Novel Dual-band Femtocells Unlicensed Channel Access Mechanism[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2556-2562. doi: 10.11999/JEIT170184

Citation:

LIAO Shuri, HE Shiwen, YANG Luxi. A Novel Dual-band Femtocells Unlicensed Channel Access Mechanism[J]. Journal of Electronics & Information Technology, 2017, 39(11): 2556-2562. doi: 10.11999/JEIT170184

Citation:

PDF( 2082 KB)

A Novel Dual-band Femtocells Unlicensed Channel Access Mechanism

doi: 10.11999/JEIT170184

1.
(School of Information Science and Engineering, Southeast University, Nanjing 210096, China)
2.

Funds:

The National Natural Science Foundation of China (61471120, 61422105, 61671145), The Key Laboratory of Cognitive Radio and Information Processing, Ministry of Education (Guilin University of Electronic Technology) (CRKL160203)

Received Date: 2017-03-01
Rev Recd Date: 2017-07-20
Publish Date: 2017-11-19

Abstract

Abstract

In order to efficiently utilize the unlicensed band to improve the network capacity, it is necessary to solve the problem of the coexistence between Long Term Evaluation (LTE) and WiFi. Licensed-Assisted Access (LAA) and the Dual-Band Femtocell (DBF) which can access both the licensed and unlicensed bands are proposed recently. In this paper, considering the case that a DBF partly overlaps with just one WiFi Access Point (AP), a novel DBF unlicensed channel access mechanism is proposed. Then, the optimal traffic balancing scheme over licensed and unlicensed bands considering the effect of coverage overlap is developed. Numerical results show that if DBF and WiFi AP are invisible mutually, the proposed scheme outperforms the existing scheme in terms of sum utility and throughput because of extra fraction of unlicensed channel time for DBF using spatial reuse. Otherwise the performance is the same as the existing scheme, that is, DBF and WiFi AP use the unlicensed band alternately.
- Licensed-Assisted Access (LAA),
- Dual-Band Femtocell (DBF),
- Channel access mechanism,
- Traffic balancing,
- Coverage overlapping

FullText(HTML)

References(16)

References

ANDREWS J G, BUZZI S, WAN C, et al. What will 5G be[J]. IEEE Journal on Selected Areas in Communications, 2014, 32(6): 1065-1082. doi: 10.1109/JSAC.2014.2328098.

ABINADER F M, ALMEIDA E P L, CHAVES F S, et al. Enabling the coexistence of LTE and Wi-Fi in unlicensed bands[J]. IEEE Communications Magazine, 2014, 52(11): 54-61. doi: 10.1109/MCOM.2014.6957143.

RATASUK R, MANGALVEDHE N, and GHOSH A. LTE in unlicensed spectrum using licensed-assisted access[C]. IEEE GLOBECOM Workshops, Austin, TX, USA, 2015: 746-751.

LIU F, BALA E, ERKIP E, et al. A framework for femtocells to access both licensed and unlicensed bands[C]. IEEE International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, Princeton, NJ, USA, 2011: 407-411.

Small Cell Forum, Integrated Femto-WiFi (IFW) Networks, White paper at smallcellforum.org, Feb. 2012. smallcellforum. org/.

KWAN R, PAZHYANNUR R, SEYMOUR J, et al. Fair coexistence of licensed assisted access lte (laa-lte) and wi-fi in unlicensed spectrum[C]. Computer Science and Electronic Engineering Conference, Colchester, UK, 2015: 13-18.

ALMEIDA E, CAVALCANTE A M, PAIVA R C D, et al. Enabling LTE/WiFi coexistence by LTE blank subframe allocation[C]. IEEE International Conference on Communications, Budapest, Hungary, 2013: 5083-5088.

YIN R, YU G, MAAREF A, et al. Adaptive LBT for licensed assisted access LTE networks[C]. IEEE GLOBECOM, San Diego, CA, USA, 2015: 1-6.

CHOI S and PARK S. Co-existence analysis of duty cycle method with Wi-Fi in unlicensed bands[C]. IEEE International Conference on Information and Communication Technology Convergence, Jeju, South Korea, 2015: 894-897.

ELSHERIF A R, CHEN W P, ITO A, et al. Resource allocation and inter-cell interference management for dual- access small cells[J]. IEEE Journal on Selected Areas in Communications, 2015, 33(6): 1082-1096. doi: 10.1109/JSAC. 2015.2416990.

LIU F, ERKIP E, BELURI M C, et al. Dual-band femtocell traffic balancing over licensed and unlicensed bands[C]. IEEE International Conference on Communications, Ottawa, ON, Canada, 2012: 6809-6814.

LIU F, BALA E, ERKIP E, et al. Small-cell traffic balancing over licensed and unlicensed bands[J]. IEEE Transactions on Vehicular Technology, 2015, 64(12): 5850-5865. doi: 10.1109/ TVT.2014.2387798.

ELSHERIF A R, CHEN W P, ITO A, et al. Adaptive small cell access of licensed and unlicensed bands[C]. IEEE International Conference on Communications, Budapest, Hungary, 2013: 6327-6332.

FANG Y, WANG C, DING G, et al. Optimal traffic balancing scheme in small cells between licensed and unlicensed bands [C]. IEEE International Conference on Wireless Communications Signal Processing, Nanjing, China, 2015: 1-6.

CHEN Q, YU G, SHAN H, et al. Cellular meets WiFi: Traffic offloading or resource sharing[J]. IEEE Transactions on Wireless Communications, 2016, 15(5): 3354-3367. doi: 10.1109/TWC.2016.2520478.

MO J and WALRAND J. Fair end-to-end window-based congestion control[J]. IEEE Transactions on ACM Networking, 2000, 8(5): 556-567. doi: 10.1109/90.879343.

Relative Articles

Supplements(0)

Cited By

Proportional views