Maximum Utility Principle Slide Handover Strategy for Multi-Antenna Cellular Architecture

This paper proposes maximum utility principle slide handover strategy for multi-antenna cellular architecture. Based on generalized distributed cellular architecture-group cell, slide handover strategy is illustrated and its merits are presented. Slide antenna window is applied by slide handover in the handover process, which makes users always in the cell centre and eliminates cell-edge effect. But for traditional slide handover, the handover rules of adding new antenna elements and replacing or releasing existing antenna elements are only by the pilot strength of each antenna element. This will constrain the performance of slide handover. Therefore, the rules need to be enhanced. Maximum utility principle slide handover strategy, proposed by this paper, can effectively solve this problem. The utility function in the slide handover and steps for handover are described in this paper and system-level performance evaluation is provided with comparison of traditional slide handover to verify the merits of maximum utility principle slide handover strategy.