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Multicell power allocation method based on game theory for inter-cell interference coordination

Hui Zhang ; Xiaodong Xu ; Jingya Li ; Xiaofeng Tao ; Ping Zhang ; Tommy Svensson (Institutionen för signaler och system, Kommunikationssystem) ; Carmen Botella (Institutionen för signaler och system, Kommunikationssystem)
Science in China Series F: Information Sciences (1009-2757). Vol. 52 (2009), 12, p. 2378–2384.
[Artikel, refereegranskad vetenskaplig]

As a new technology, coordinated multipoint (CoMP) transmission is included in LTE-Advanced study item. Moreover, the network architecture in LTE-Advanced system is modified to take into account coordinated transmission. Under this background, a novel power allocation game model is established to mitigate inter-cell interference with cellular coordination. In the light of cellular cooperation relationship and centralized control in eNodeB, the power allocation in each served antenna unit aims to make signal to interference plus noise ratio (SINR) balanced among inter-cells. Through the proposed power allocation game algorithm, the users’ SINR can reach the Nash equilibrium, making it feasible to reduce the co-frequency interference by decreasing the transmitted power. Numerical results show that the proposed power allocation algorithm improves the throughput both in cell-center and cell-edge. Moreover, the blocking rate in cell-edge is reduced too.

Nyckelord: LTE-Advanced - inter-cell interference coordination - CoMP - game theory - power allocation



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Denna post skapades 2009-10-19. Senast ändrad 2015-03-30.
CPL Pubid: 100273

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem (1900-2017)

Ämnesområden

Informations- och kommunikationsteknik
Telekommunikation
Signalbehandling

Chalmers infrastruktur