In this paper, we present a novel integer programming (IP) optimization formulation for downlink OFDM subchannel allocations in a multicell system and propose viable sub-optimal solutions. The schemes use dynamic intercell coordination in order to avoid or minimize dominant co-channel interference and achieve maximum network throughput by exploiting multicell multiuser diversity and interference avoidance gains. The performance of the proposed schemes is compared with that of reference round-robin schedulers without intercell coordination. It is observed from snapshot simulation results that the proposed schemes outperform the reference schemes in terms of throughput and quality of service (QoS) considerations.

Additional Metadata
Keywords Interference avoidance, Multicell diversity, OFDM resource allocation, Radio resource optimization
Persistent URL dx.doi.org/10.1109/GLOCOM.2007.990
Conference 50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
Citation
Rahman, M. (Mahmudur), & Yanikömeroǧlu, H. (2007). Multicell downlink OFDM subchannel allocations using dynamic intercell coordination. In GLOBECOM - IEEE Global Telecommunications Conference (pp. 5220–5225). doi:10.1109/GLOCOM.2007.990