Broadcast Cooperation Strategies for Two Colocated Users

This work considers the problem of communication from a single transmitter, over a network with colocated users, through an independent block Rayleigh fading channel. The colocation nature of the users allows cooperation, which increases the overall achievable rate, from the transmitter to the destined user. The transmitter is ignorant of the fading coefficients, while receivers have access to perfect channel state information (CSI). This gives rise to the broadcast approach used by the transmitter. The broadcast approach facilitates reliable transmission rates adapted to the actual channel conditions, designed to maximize average throughput. It also allows in our network setting to improve the cooperation between the colocated users. With the broadcast approach, users can decode something out of the message, with almost any fading realization. The better the channel quality, the more layers that can be decoded. Such an approach is useful when considering average rates, rather than ou...

• Type: Journal
• Year: 2006
• Where: CORR
• Authors: Avi Steiner, Amichai Sanderovich, Shlomo Shamai
• Keywords: Broadcast Approach, CORR 2006, Education, Single Transmitter, Transmitter