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首页> 外文期刊>Sensor Letters: A Journal Dedicated to all Aspects of Sensors in Science, Engineering, and Medicine >Radio Frequency Allocation in Cellular Network with Two-Hop Fixed MIMO-Orthogonal Frequency Division Multiplex Access Relay Stations
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Radio Frequency Allocation in Cellular Network with Two-Hop Fixed MIMO-Orthogonal Frequency Division Multiplex Access Relay Stations

机译：具有两跳固定MIMO正交频分复用接入中继站的蜂窝网络中的射频分配

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摘要

Enhanced MIMO-OFDMA relays in cellular network can improve system capacity, enlarge the coverage. However, radio frequency allocation, interference distribution in the cell with two-hop fixed MIMO-OFDMA relay stations become more complicated. Through enhanced six MIMO-OFDMA relay stations in each cell, this paper investigates radio frequency allocation scheme based on hard and soft reuse partitioning. By optimizing spectrum reuse factors used in base station-mobile station link, base station-relay station links and relay station-mobile station links, spectrum resources are utilized effectively and severe inter-cell co-channel interference is mitigated as well. Simulation results demonstrate that, in comparison with conventional network, the MIMO-OFDMA relay enhanced cellular network adopting these radio frequency allocation schemes obtains higher performance in terms of cell capacity and high data rate coverage.
机译：蜂窝网络中增强的MIMO-OFDMA中继可以提高系统容量，扩大覆盖范围。然而，在具有两跳固定MIMO-OFDMA中继站的小区中的射频分配，干扰分布变得更加复杂。通过在每个小区中增强六个MIMO-OFDMA中继站，研究基于硬重用和软重用划分的射频分配方案。通过优化基站-移动站链路，基站-中继站链路和中继站-移动站链路中使用的频谱重用因子，可以有效地利用频谱资源，并且还可以减轻严重的小区间同频干扰。仿真结果表明，与常规网络相比，采用这些射频分配方案的MIMO-OFDMA中继增强型蜂窝网络在小区容量和高数据速率覆盖方面获得了更高的性能。

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