Abstract:

An analytical expression of the average outage probability on symmetric cooperative wireless networks is derived with consideration of the link gain between the source and the destination. Compared with schemes with no link gain, the study shows that it will improve the outage performance. Moreover, the power allocation problem is analyzed that the power is distributed equally between relays. It shows us that the optimal power allocation ratio is subjected to the total power in networks and to the networks size.

Key words: cooperative communication, outage probability, power allocation