| Paper: | SPCOM-P2.6 | ||
| Session: | Wireless Access and Networking | ||
| Time: | Tuesday, May 18, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communications: Capacity and Performance Analysis, Optimization, and Bounds | ||
| Title: | PERFORMANCE LIMITS OF AMPLIFY-AND-FORWARD BASED FADING RELAY CHANNELS | ||
| Authors: | Rohit Nabar; Swiss Federal Institute of Technology (EPFL) | ||
| Felix Kneubuehler; Swiss Federal Institute of Technology (EPFL) | |||
| Helmut Boelcskei; Swiss Federal Institute of Technology (EPFL) | |||
| Abstract: | In this paper, we examine the basic building block of cooperative diversity systems, a simple fading relay channel where the source, destination and relay terminals are each equipped with single antenna transceivers. We consider three different TDMA-based cooperative protocols that vary the degree of broadcasting and receive collision. For each protocol, the relay terminal simply amplifies-and-forwards the signal received from the source terminal to the destination. We study the ergodic and outage capacity behavior of each of the protocols assuming Gaussian code books and show that full spatial diversity(second-order in this case) is achieved by certain protocols provided that appropriate power control is employed. Finally, weestablish the superiority (both from a capacity as well as a diversity point-of-view) of a new protocol proposed in this paper. | ||
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