Improved resource allocation strategy in SU-CoMP network
Artikel i vetenskaplig tidskrift, 2011

Coordinated Multi-Point transmission and reception (CoMP) for single user, named as SU-CoMP, is considered as an efficient approach to mitigate inter-cell interference in Orthogonal Frequency Division Multiple Access (OFDMA) systems. Two prevalent approaches in SU-CoMP are Coordinated Scheduling (CS) and Joint Processing (JP). Although JP in SU-CoMP has been proved to achieve a great link performance improvement for the cell-edge user, efficient Resource Allocation (RA) on the system level is quite needed. However, so far limited work has been done considering JP, and most existing schemes achieved the improvement of cell-edge performance at cost of the cell-average performance degradation compared to the single cell RA. In this paper, a two-phase strategy is proposed for SU-CoMP networks. CS and JP are combined to improve both cell-edge and cell-average performance. Compared to the single cell RA, simulation results demonstrate that, the proposed strategy leads to both higher cell-average and cell-edge throughput.

SU-CoMP

RA

binary power allocation based multi-cell coordinated proportional fair scheduling (BP-CPF)

OFDMA system

sub-channels assignment for joint processing (JP-SA)

Författare

Xin Chen

Ministry of Education China

Xiaodong Xu

Ministry of Education China

Hongjia Li

Ministry of Education China

Xiaofeng Tao

Ministry of Education China

Tommy Svensson

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Carmen Botella Mascarell

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

The Journal of China Universities of Posts and Telecommunications

2210-5123 (ISSN)

Vol. 18 4 7-12

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

DOI

10.1016/S1005-8885(10)60076-3

Mer information

Skapat

2017-10-07