The effect of noise correlation in amplify-and-forward relay networks
IEEE Transactions on Information Theory
Optimizations of a MIMO Relay Network
IEEE Transactions on Signal Processing - Part II
Optimal designs for space-time linear precoders and decoders
IEEE Transactions on Signal Processing
Distributed MMSE Relay Strategies for Wireless Sensor Networks
IEEE Transactions on Signal Processing - Part I
On Capacity Under Receive and Spatial Spectrum-Sharing Constraints
IEEE Transactions on Information Theory
The cost of using cooperation in a wireless network
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
Superposition Coding and Analysis for Cooperative Multiple Access Relay System
Wireless Personal Communications: An International Journal
Wireless Personal Communications: An International Journal
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Relay networks have received considerable attention recently, especially when limited size and power resources impose constraints on the number of antennas at each node. While fixed and mobile relays can co-operate to improve reception at the desired destination, they also contribute to un-intended interference for neighboring cells reusing the same frequency. In this paper, we propose and analyze a relay scheme to simultaneously maximize SNR and minimize MSE, for an amplify-and-forward (AF) relay network operating under a receive power constraint guaranteeing that the received signal power is bounded to control interference to neighboring cells. If the intended destination lies at the periphery of the cell, then the proposed scheme guarantees that the total power leaking into neighboring cells is bounded. The optimal relay factors are provided for both correlated and uncorrelated noise at the relays. Simulation results are presented to verify the analysis.