An optimized implicit cross-layer transmission control algorithm in WSNs
Jiang Gui-quan · Transducer and Microsystem Technologies · 2013
In order to improve transmission quality of WSNs,improvements are made on implicit hop-by-hop congestion control protocol in Ad Hoc networks.The protocol can be suitable for WSNs by cooperation of routing layer,MAC layer,and transmission layer.In routing layer,static routing protocol is used,thus flooding can be avoided by setting two destination receiving nodes.Relative information entropy theory is introduced into the transmission layer to achieve implicit confirmation,to increases reliability of data transmission.In the MAC layer,the back-off time which used in the channel competition is determined depend on the distance between the node and the congestion zone.Cross-layer design solves the problem of transmission control in WSNs effectively.Matlab simulation proves that compared with current transmission layer protocols,the improved protocol can increase throughput of the network,reduce the network load,delay and packets loss rate.