Title :
Outage Probability of Space–Time Network Coding Over Rayleigh Fading Channels
Author :
Ke Xiong ; Pingyi Fan ; Tao Li ; Ben Letaief, Khaled
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
In this paper, we analyze the outage probability of space-time network coding (STNC) in a distributed cooperative relaying system, where multiple sources transmit their information to a common destination with the help of multiple decode-and-forward (DF) relays in time-division multiple-access (TDMA) mode. We first derive an exact closed-form expression of the outage probability for STNC with an arbitrary number of relays for independent but not necessarily identically distributed (i.n.i.d.) Rayleigh fading channels. With the developed result, we discuss the impact of the transmit SNR, the outage threshold, the number of relays, the nonorthogonal codes, and the relay position on the system performance.
Keywords :
Rayleigh channels; cooperative communication; decode and forward communication; network coding; probability; relay networks (telecommunication); space-time codes; time division multiple access; Rayleigh fading channels; STNC; TDMA mode; closed-form expression; decode-and-forward relays; distributed cooperative relaying system; nonorthogonal codes; outage probability; space-time network coding; time-division multiple-access mode; Educational institutions; Fading; Interference; Network coding; Relays; Signal to noise ratio; Time division multiple access; Outage probability; Rayleigh fading channels; Space-time network coding; outage probability; space??time network coding (STNC);
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2013.2287233
