Energy-Saving Massive Access Control and Resource Allocation Schemes for M2M Communications in OFDMA Cellular Networks
Energy-Saving Massive Access Control and Resource Allocation Schemes for M2M Communications in OFDMA Cellular Networks
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DOI：
10.1109/wcl.2012.031912.110278
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发表时间：
2012-04
影响因子：
6.3
通讯作者：
C. Ho;Ching-Yao Huang
中科院分区：
文献类型：
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作者：
C. Ho;Ching-Yao Huang
机器间通信是近年来IEEE 802.16p和LTE-A等4G标准化委员会研究的热点问题。在嵌入有M2M系统的OFDMA蜂窝网络中，考虑传输和电路消耗的能量来制定能量消耗（EC）最小化问题。我们提出了联合大规模访问控制和资源分配（RA）计划，执行机器节点分组，协调员的选择，和协调员RA，并确定适当的组数下的2跳传输协议，以尽量减少总EC在平坦和频率选择性衰落信道。数值结果表明，所提出的计划可以实现次优EC。
Machine-to-Machine communication recently becomes a popular issue in 4G Standardization Committee, such as IEEE 802.16p and LTE-A. In an OFDMA cellular network embedded with a M2M system, the energy consumption (EC) minimization problem is formulated with the consideration of transmission and circuit energy consumed. We propose joint massive access control and resource allocation (RA) schemes, which perform machine node grouping, coordinator selection, and coordinator RA, and also determine the proper number of groups under a 2-hop transmission protocol, to minimize total EC in both flat- and frequency-selective fading channel. Numerical results show that proposed schemes can achieve sub-optimal EC.