无线随机接入网络中的冲突解决技术研究

Researches on Collision Resolution Technologies in Random Access Wireless Networks

在无线随机接入网络中，数据包的冲突是不可避免的。传统上，解决冲突的方法是采用MAC协议控制数据包接入信道和冲突后的重传管理。最近，又出现了采用信号处理技术解决数据包冲突的新方法，这一技术充分体现了信号处理技术与网络技术的融合。文中分析和比较了各种基于协议和基于信号处理技术的冲突解决方法。最后给出了进一步的研究方向与结论。

In wireless random access networks, packet collision is unavoidable. Traditionally, MAC protocols are used to control channel accessing and manage retransmissions after collision. Up to date, signalprocessing based collision resolution methods are proposed. It embodies fully the amalgamation of network technologies and signal processing technologies. This paper discusses protocol based and signal processing based collision resolution methods and their comparisons. In the end, research directions and conclusions are discussed. 