Multi-cell aware opportunistic random access
Multi-cell aware opportunistic random access
复制标题
多小区感知机会随机接入
DOI：
10.1109/isit.2017.8006986
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Won
中科院分区：
文献类型：
--
作者：
Huifa Lin;Won
我们提出了一种分散的多小区感知机会随机接入（MA-ORA）协议，该协议在每个小区有一个接入点（AP）和N个用户的k小区随机接入网络中几乎实现了最优吞吐量扩展。在我们的MA-ORA协议下，如果服务AP所需的信号功率足够大，而对其他AP产生的干扰功率足够小，用户可以机会地以分散的方式使用预定义的物理层数据速率进行传输。证明了在高信噪比（SNR）条件下，如果N的尺度大于信噪比k−1/1−δ（小常数），δ > 0，则总吞吐量的尺度为k/e(1−)log（SNR log N）。通过计算机仿真验证了分析结果。
We propose a decentralized multi-cell aware opportunistic random access (MA-ORA) protocol that almost achieves the optimal throughput scaling in a K-cell random access network with one access point (AP) and N users in each cell. Under our MA-ORA protocol, users opportunistically transmit with a predefined physical layer data rate in a decentralized manner if the desired signal power to the serving AP is sufficiently large and the generating interference power to other APs is sufficiently small. It is proved that the aggregate throughput scales as k/e (1 − ∊)log(SNR log N) in a high signal-to-noise ratio (SNR) regime if N scales faster than SNR k−1/1−δ for small constants ∊,δ > 0. Our analytical result is validated by computer simulations.