Effects of Gradual Enhancement for Receivers at Mobile Terminals in Different Locations with Greedy Scheduling

Jaehwang YU  Kwyro LEE  Dongwoo KIM  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.10   pp.2929-2932
Publication Date: 2006/10/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.10.2929
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
mobile communications,  multiuser diversity,  greedy scheduling,  mobile location,  

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Receiver enhancement at mobile terminals such as using receiver diversity is a way of achieving greater downlink capacity. The enhancement, however, is achieved not instantaneously by a network operator but gradually by the individual users that choose and purchase their own mobile terminals. We investigate in this letter the effect of gradually introducing enhanced receivers at mobiles in different locations. With greedy scheduling, capacity, fairness and coverage are quantified and numerically compared according to locations of enhanced mobiles. The results show that the enhancement made at mobiles nearer to the base provides the greater capacity but this capacity-driving introduction of the enhancement makes the fairness and the coverage poorer.