DocumentCode :
3639503
Title :
Enhancing LTE-advanced relay deployments via Biasing in cell selection and handover decision
Author :
Abdallah Bou Saleh;Ömer Bulakci;Simone Redana;Bernhard Raaf;Jyri Hämäläinen
Author_Institution :
Nokia Siemens Networks, St.-Martin-Strasse 76, 81541, Munich, Germany
fYear :
2010
Firstpage :
2277
Lastpage :
2281
Abstract :
Decode-and-forward relaying is a promising enhancement to current radio access networks and is now being standardized in the 3GPP work item on LTE-Advanced. Relay enhanced networks are expected to fulfill the demanding coverage and capacity requirements in a cost-efficient way. However, due to the low transmit power characteristic of relay nodes, their coverage areas will be relatively small in the overlaying macro cell. Therefore, the performance of relay deployments may be limited by load imbalances, unless system parameters are properly selected. In this paper, we propose a practical solution for this problem by introducing a bias to cell selection and handover thresholds. By applying the bias, the relay cells can be extended and an appropriate load balance can be achieved. Via a comprehensive system level simulation campaign, it is shown that biasing results in significant user throughput improvements in both the uplink and the downlink.
Keywords :
"Gain","Relays","Interference","Throughput","Signal to noise ratio","Power control","Transmitting antennas"
Publisher :
ieee
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
ISSN :
2166-9570
Print_ISBN :
978-1-4244-8017-3
Electronic_ISBN :
2166-9589
Type :
conf
DOI :
10.1109/PIMRC.2010.5671694
Filename :
5671694
Link To Document :
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