Regular Section
On the Optimal Transmission in Multihop Relay Networks over Rayleigh Fading Channels
2009 Volume E92.B Issue 6 Pages 2341-2344
Details
2009 Volume E92.B Issue 6 Pages 2341-2344
In this letter we investigate the relaying strategies for multihop transmission in wireless networks over Rayleigh fading channels. Theoretical analysis reveals that equally allocating power among all transmitters and placing relays equidistantly on the line between source and destination are optimal in terms of outage capacity. Then equal time duration for the transmission of each hop is also proved to be optimal. Furthermore, the optimum number of hops is also derived and shown to be inversely proportional to the signal-to-noise ratio (SNR). Numerical simulations agree well with the reported theoretical results.
