Effect of Distributed Subcarrier Permutation on Adaptive Beamforming in WiMAX Networks

In this paper, the authors investigate the performance of adaptive beamforming while using subcarrier permutation PUSC in WiMAX cellular network. In the literature, it has been shown that frequency reuse 1 is possible for beamforming capable WiMAX networks but with partial resource utilization or base station coordination. In this paper, they show however that using distributed subcarrier permutation (PUSC) offers sufficient diversity to allow full resource utilization without the need of coordination. The authors study an IEEE 802.16e cellular network employing adaptive beamforming per PUSC Major Group.