关键词:串行; 多中继选择; MAC层; 碰撞概率
Serial multiple relay selection method based on instantaneous CSI
HAN Weijia, CHEN Qianbin, TANG Lun
(College of Communication & Information Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China)
Abstract:This paper proposed a distributed serial multiple relay selection method based on instantaneous channel state information(CSI). It involved MAC layer’s protocols, added field F to RTS package and used to storage the numbers of selected relays,and acquiring the instantaneous measurements of relay’s backward, forward channel quality by broadcasting RTS and CTS packages,then exploited timing and broadcasting flag package to achieve time serial multiple relay selection. It derived the collision probability formula of this method with Rayleigh Fading, and conducted computer simulations to show the collision probability of best relay selection and serial two relay selection. Simulations demonstrate that the collision probability is within the range of tolerance and the new method is feasible.......