Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading

Details Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading

2009-08-26

arxiv.org/abs/0908.3815v1

Nonlinear Sciences

Adaptation and Self-Organizing Systems

Submitted to IEEE Trans. on Signal Processing on 8 July 2009

Scientific paper

A new approach to distributed cooperative beamforming in relay networks with frequency selective fading is proposed. It is assumed that all the relay nodes are equipped with finite impulse response (FIR) filters and use a filter-and-forward (FF) strategy to compensate for the transmitter-to-relay and relay-to-destination channels. Three relevant half-duplex distributed beamforming problems are considered. The first problem amounts to minimizing the total relay transmitted power subject to the destination quality-of-service (QoS) constraint. In the second and third problems, the destination QoS is maximized subject to the total and individual relay transmitted power constraints, respectively. For the first and second problems, closed-form solutions are obtained, whereas the third problem is solved using convex optimization. The latter convex optimization technique can be also directly extended to the case when the individual and total power constraints should be jointly taken into account. Simulation results demonstrate that in the frequency selective fading case, the proposed FF approach provides substantial performance improvements as compared to the commonly used amplify-and-forward (AF) relay beamforming strategy.

Affiliated with

Also associated with

No associations

Rating

Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter-And-Forward Distributed Beamforming in Relay Networks with Frequency Selective Fading will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-624575