DocumentCode :
2946012
Title :
Joint power and backhaul bits allocation for coordinated multi-point transmission
Author :
Soliman, Hazem M. ; Naguib, Ahmed A. ; Nasr, Omar A. ; Khairy, Mohamed M. ; Elsayed, Khaled
Author_Institution :
EECE Dept., Cairo Univ., Cairo, Egypt
fYear :
2011
fDate :
6-9 Nov. 2011
Firstpage :
76
Lastpage :
80
Abstract :
In this paper, we study the problem of backhaul sharing in Network MIMO. In case of a backhaul of limited number of bits, we investigate how to allocate these bits jointly with the base-stations power among users in order to maximize the sum-rate under fairness constraints. Firstly, we study this problem with the assumption of one user per cell. We find that binary allocation of power is optimal. Then, the multi-user case is considered. A solution of the optimization problem is developed under high signal-to-interference and noise ratio(SINR). We prove that under these assumptions, backhaul bits allocation among the cells or among the users of each cell has no effect on the sum-rate of system. Hence, allocating these bits in order to achieve fairness conditions is possible without any loss in the sum-rate.
Keywords :
MIMO communication; cellular radio; resource allocation; backhaul bits allocation; backhaul sharing; cellular base stations; coordinated multi-point transmission; fairness conditions; fairness constraints; joint power allocation; network MIMO; signal-to-interference and noise ratio; sum-rate; Base stations; Interference; MIMO; Quantization; Resource management; Signal to noise ratio; Switches; Multi-cell; backhaul sharing; power allocation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communication Systems (ISWCS), 2011 8th International Symposium on
Conference_Location :
Aachen
ISSN :
2154-0217
Print_ISBN :
978-1-61284-403-9
Electronic_ISBN :
2154-0217
Type :
conf
DOI :
10.1109/ISWCS.2011.6125313
Filename :
6125313
Link To Document :
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