基于异构MIMO自组织网络的MAC层设计

doi:10.3969/j.issn.1000-0801.2012.04.018

Abstract

Abstract:

Parallel RTS processing MAC （PRP-MAC）not only can be applied to heterogeneous MIMO-based Ad Hoc network, but also can allow two links to transmit simultaneously. However, when the number of receiving antennas in one link is much larger than the other link's, the throughput is limited greatly. That's because the number of data streams can be transmitted must be less or equal to the number of receiving antennas in each link. To solve this problem, this paper proposed extended PRP-MAC （EPRP-MAC）. When receiver does not have enough space to eliminate interference, transmitter can still realize interference-free transmission through precoding technology. As a result, EPRP-MAC can improve the throughput effectively.

Key words: ad hoc, MIMO, PRP-MAC, EPRP-MAC

Xingxiang Jiang,Caihui Ye,Weishan Lu. MAC Design in Heterogeneous MIMO-Based Ad Hoc Network[J]. Telecommunications Science, 2012, 28(4): 84-89.

Figures/Tables 4

References 9

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参数	值
节点数目	16
各节点的天线数	在｛1,2,3,…,MaxAntenna｝随机选取
调制方式	QPSK
数据分组产生速率	λ=10数据分组/s
每个大数据分组的数据分组个数	在集合｛1,2,3,…,8｝中随机选取
数据分组长度	2 KB
RTS、CTS和ACK长度	26 byte
码元速率	1×10⁶码元/s
控制分组时隙长度	128 μs
退避微时隙长度	2 μs
微时隙个数	10
缓存大小	120个数据分组
仿真时间	20 s

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MAC Design in Heterogeneous MIMO-Based Ad Hoc Network

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