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首页> 外文会议>Wireless amp; optical communications >ENHANCED PCS AND RI-NST MECHANISM FOR EFFECTIVE MEDIUM ACCESS IN WIRELESS AD HOC NETWORKS
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ENHANCED PCS AND RI-NST MECHANISM FOR EFFECTIVE MEDIUM ACCESS IN WIRELESS AD HOC NETWORKS

机译：无线AD HOC中有效媒介访问的增强PCS和RI-NST机制

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摘要

Aggregate throughput of a wireless ad hoc network is diminished by hidden terminal problem which can cause packet collisions at the receiver and fair access of the medium is also lessened by receiver blocking problem which can induce unnecessary backoff circles and packet retransmissions. In this paper, a new Medium Access Control (MAC) scheme which uses enhanced Physical Carrier Sensing (PCS) with tunable carrier sense range based on transmitter-receiver distance has been proposed to eliminate the hidden terminal problem, aiming to enhance the aggregate throughput of wireless ad hoc networks. For having fair medium access, Receiver Initiated Notification of Successful Transmission (RI-NST) mechanism has also been introduced to prevent the receiver blocking problem. Extensive simulation results verify that our proposed MAC scheme gets higher aggregate network throughput and better fairness than the conventional MAC scheme.
机译：隐藏终端问题可能会降低无线自组织网络的总吞吐​​量，这可能会导致接收方发生数据包冲突，而接收方阻塞问题也可能降低介质的公平访问，从而导致不必要的退避循环和数据包重传。本文提出了一种新的媒体访问控制（MAC）方案，该方案使用了基于发射器-接收器距离的，具有可调载波侦听范围的增强型物理载波侦听（PCS），旨在消除隐藏终端问题，目的是提高基站的总吞吐量无线自组网。为了获得公平的媒体访问权限，还引入了接收方发起的成功传输通知（RI-NST）机制，以防止接收方阻塞问题。大量的仿真结果验证了我们提出的MAC方案比常规MAC方案具有更高的总网络吞吐量和更好的公平性。

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