电信科学 ›› 2012, Vol. 28 ›› Issue (4): 84-89.doi: 10.3969/j.issn.1000-0801.2012.04.018

• 研究与开发 • 上一篇    下一篇

基于异构MIMO自组织网络的MAC层设计

江兴祥,叶才慧,卢伟山   

  1. 华南理工大学 广州510640
  • 出版日期:2012-04-15 发布日期:2017-06-14

MAC Design in Heterogeneous MIMO-Based Ad Hoc Network

Xingxiang Jiang,Caihui Ye,Weishan Lu   

  1. South China University of Technology, GuangZhou 510640, China
  • Online:2012-04-15 Published:2017-06-14

摘要:

并行RTS 处理媒质接入控制协议(PRP-MAC)不但能应用于异构MIMO 自组织网络中,而且允许两条链路同时通信。然而当这两条链路的接收天线数目相差较大时,会极大地限制网络的吞吐量,这是因为网络中可发送的数据分组数目必须小于或等于各链路的接收天线数目。为了解决这一问题,本文提出一种扩展PRP-MAC(EPRP-MAC)协议,当接收端没有足够的空间消除干扰时,发射端仍能使用预编码技术实现无干扰传输,从而有效地提高网络的吞吐量。

关键词: 自组织, 多输入多输出, PRP-MAC, EPRP-MAC

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

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