Citation: | Li LI, Peng YE, Zhangjie PENG, Yanzhi TANG. Research on Joint Interference Coordination Approach in Ultra-dense Heterogeneous Network[J]. Journal of Electronics & Information Technology, 2019, 41(1): 9-15. doi: 10.11999/JEIT180290 |
This paper presents an approach of combining the existing enhanced inter-cell interference coordination technology and the downlink joint transmission scheme of coordinated multi-point transmission technology to solve the problem of serious cross-layer interference in 5G ultra-dense heterogeneous network. With using tools from stochastic geometry theory, the expressions such as the outage probability, spectrum efficiency and network average ergodic capacity of two-layer ultra-dense heterogeneous network are derived. Simulation results show that the proposed joint interference coordination scheme not only reduces the number of cooperative users compared with the traditional coordinated multi-point transmission technology, but also reduces the outage probability of users by 15% in the network at 0 dB. Compared with the enhanced inter-cell interference coordination technology, when the bias value is 10 dB, the user spectrum efficiency in the extended area is improved to 35% and the average traversal capacity of the entire network is increased by 3.4%.
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