An Optimal Handover Decision for Throughput Enhancement

This letter proposes an optimal handover decision algorithm from the perspective of throughput enhancement. By considering two handover schemes (soft handover and fast cell selection), the proposed algorithm decides a handover only when a throughput gain exists. In order for this decision to be made, a new measurement parameter, Interference to other-Interferences-plus-Noise Ratio (IINR), is defined. The proposed IINR-based handover decision demonstrates optimal throughput performance, while the legacy signal to interference-plus-noise ratios (SINR)-based handover decision presents a tradeoff between throughput and feedback overhead.