Resource allocation in cooperative relaying for multicell OFDMA systems

Authors:
Abdelhalim Najjar;Noureddine Hamdi;Ammar Bouallegue
Affiliations:
Communication Systems Lab, ENIT, Manar University, Tunisia;Departement of Computer Science and Mathematics, INSAT, Carthage University, Tunisia;Communication Systems Lab, ENIT, Manar University, Tunisia
Venue:
MACOM'11 Proceedings of the 4th international conference on Multiple access communications
Year:
2011

Citing 4
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Abstract

In this paper, we propose an allocation algorithm that minimizes the base station (BS) transmit power of broadcast link OFDMA cellular networks and satisfies the user rate requirements. By minimizing the base station transmitted power, the co-channel cell interference (CCI) can be reduced effectively. To perform the mitigation of the CCI, a fixed amplify and forward relay station (RS) that assists the BS to broadcast data to mobiles in the cell edge region, has been adopted. Numerical results are used to show the improvement of the proposed optimal cooperative scheme compared to the performance of similar scheme without relays.