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中文摘要：
无线多跳Adhoc网络中的节点在业务发送过程中需要竞争共享信道，容易发生局部拥塞导致网络性能下降，而且节点内部采用的先入先出（FIFO）队列容易使队头出现阻塞现象，影响队列中后续分组的发送。为此提出了一种基于拥塞的机会调度算法，发送节点发送RTS帧时目标指向多个下一跳接收节点，这些节点在正确解码RTS帧后根据自身拥塞程度按一定概率依照调度优先级顺序发送CTS帧。仿真结果表明，该算法提高了网络端到端的饱和吞吐量和信道利用率，也提高了业务流之间的公平性。
英文摘要：
In wireless multi-hop Ad hoe networks, nodes need to contend for the shared wireless channel, this could result in partial congestion in the network and degrade the network performance. And first in first out （FIFO） queue within a node could easily cause the head-of-line blocking problem. A novel congestion-based opportunistic scheduling （CBOS） algorithm is proposed. In CBOS, the sender sends multicast request to send （RTS） frame targeted to several receivers, and the receivers would reply priority-based clear to send （CTS） by the probability according to its queue congestion status. The simulation results show that CBOS can remarkably increase the network end-to-end saturation throughput and the utilization ratio of wireless channel, and can increase the fairness among traffic flows.
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