ISBN-13: 9783639153750 / Angielski / Miękka / 2009 / 60 str.
Cooperative diversity technique allows us to create avirtual antenna array, trading off costs - in power,bandwidth and complexity - for the greater benefitsgained by exploiting spatial diversity in thechannel. Network coding is a new transmissionparadigm that takes the advantage of broadcast natureof wireless medium and proved its strength inoptimizing, improving the performance and isparticularly suitable when robust operation is ofhigh importance. Our scheme provides distributedmethod that selects the best cooperative relay from aset of N available relays with data from the globalRSSI table to achieve diversity gains to the order ofnumber of relays in the network. Such diversity gainstranslate into greatly improved robustness to fadingfor the same transmit power, or substantially reducedtransmitting power for the same level of performance.The performance of the network coded cooperativecommunication scheme is evaluated in terms of theprobability of system outage (Ps) and total powerconsumption (Pt).