Wireless Personal Communications

, Volume 56, Issue 2, pp 277–299 | Cite as

Performance Analysis of Maximum SNR Scheduling with an Infrastructure Relay Link

  • Taneli RiihonenEmail author
  • Risto Wichman
  • Jyri Hämäläinen


We consider infrastructure-based amplify-and-forward (AF) relaying for extending downlink and uplink coverage areas of a cellular base station. The base station serves multiple mobile users via a multi-hop backhaul relay link by sharing out access link channel resources with maximum signal-to-noise ratio (SNR) scheduling. We analyze the performance of the system by deriving closed-form expressions for outage probability, outage capacity, ergodic capacity, average end-to-end SNR and amount of fading (AoF). These measures show that maximum SNR scheduling of multiple users in a cellular relay link offers significant diversity, capacity and SNR improvement over single-user transmission and round robin scheduling. We also relate performance of the relay link to that of a distributed antenna system (DAS), and show that the noisy wireless backhaul relay link induces tolerable performance deterioration compared to deploying a cable-connected distributed antenna.


Amplify-and-forward Mobile communication Relay Multi-user scheduling 


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Copyright information

© Springer Science+Business Media, LLC. 2009

Authors and Affiliations

  • Taneli Riihonen
    • 1
    Email author
  • Risto Wichman
    • 1
  • Jyri Hämäläinen
    • 1
  1. 1.Helsinki University of TechnologyTKKFinland

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