摘要 针对Ad-hoc网络中多信道MAC机制引起的控制信道瓶颈问题和隐终端问题，该文提出一种低控制开销MAC协议(LCO-MAC)。与基于信道使用表一类的MAC机制不同，LCO-MAC参考Meshhadany提出的RTS/CTS (Request To Send/Clear To Send)信道分配机制，将数据信道映射为帧中时隙，但不同的是LCO-MAC不限制RTS的发送时间，且一旦申请信道后即可发送数据。仿真结果表明，LCO-MAC无需传输太多的控制信息用于预约信道，有效缓解了控制信道瓶颈问题和多信道隐终端问题，网络吞吐量也得到明显提升。
Abstract：Considering the control channel bottleneck issue and hidden terminal issue for multi-channel MAC in Ad-hoc networks, a new multi-channel MAC with the Low Control Overhead (LCO-MAC) is proposed. Different from the multi-channel MAC mechanism based on the channel usage table, for LCO-MAC reference to the Request To Send/Clear To Send (RTS/CTS) channel assignment mechanism proposed by Meshhadany, each data channel is mapped to a time slot of the control section, but the difference is that LCO-MAC does not restrict the sending time of the RTS, and can send data once obtainning the channel. Simulation results show that LCO-MAC not needing too much control information for channel reservation provides an effective solution to the control channel bottleneck and multi-channel hidden terminal issue, the network throughput is also significantly enhanced.
蔡凤梅, 邝育军. Ad-hoc网络中一种低控制开销的多信道MAC协议[J]. 电子与信息学报, 2013, 35(5): 1076-1082.
Cai Feng-Mei, Kuang Yu-Jun. A New Resource Assignment with Low Control Overheads for Multi-channel Ad-hoc Networks. , 2013, 35(5): 1076-1082.
2013, Vol. 35 
