Abstract
In this paper, we propose an enhanced macro diversity handover (MDHO) technique for TDD-OFDMA-based interference-limited IEEE 802.16j multi-hop relay cellular networks. The proposed MDHO ensures that the topology of the diversity set members is always fully exploited. Evaluation results show that the proposed MDHO significantly outperforms the conventional MDHO and offers a CINR gain of as much as 4.13 dB.