A Distributed Multi-Channel Feedbackless MAC Protocol for D2D Broadcast Communications
A Distributed Multi-Channel Feedbackless MAC Protocol for D2D Broadcast Communications
复制标题
一种用于D2D广播通信的分布式多通道无反馈MAC协议
DOI：
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发表时间：
2015
影响因子：
6.3
通讯作者：
Hung
中科院分区：
文献类型：
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作者：
Mei;Guan;Hung
在设备到设备(D2D)广播通信中，媒体访问控制(MAC)协议的设计是非常具有挑战性的，因为它被要求在没有反馈消息、没有中央协调和半双工传输的约束下缓解数据冲突。提出了一种用于数据信道竞争的多信道MAC协议。理论和仿真结果表明，该协议在很短的迭代时间内解决了所有的信道冲突。此外，冲突解决时间取决于通道的数量，而不是D2D发射机的数量。因此，即使在D2D设备密集分布的场景中，所提出的协议也可以保证较短的冲突解决时间。
In Device-to-Device (D2D) broadcast communications, the design of Medium Access Control (MAC) protocol is quite challenging since it is urged on alleviating data collision under the constraints of no feedback messages, no central coordination, and half-duplex transmission. We propose a multi-channel MAC protocol for data channel competition. Theoretical and simulation results show that this protocol resolves all channel collisions in only a few iterations. Moreover, the collision resolution time is dominated by the number of channels, rather than the number of D2D transmitters. Thus, even in scenarios with densely-distributed D2D devices, the proposed protocol can guarantee short collision resolution time.