Title :
A Modified Inter-Cell Interference Coordination Algorithm in Downlink of TD-LTE
Author :
Zhao, Bingbing ; Chen, Liquan ; Yang, Xiaohui ; Wang, Lingling
Author_Institution :
Sch. of Inf. Sci. & Eng., Southeast Univ., Nanjing, China
Abstract :
Since the using of OFDM in LTE system eliminates the inter-channel interference within cells, inter-cell interference has become the major influence factor of inter-cell resource allocation. Besides, with the increase of types of traffics, different QoS should be provided for different quality of services. A modified algorithm is proposed to ensure multi-traffic QoS by using rate conversion in allocation resources, which take into account both priority of channel and SINR of each channel. Numerical analysis results show that the proposed algorithm is a trades-off scheme between interference and system throughput. It can improve the CEU (cell edge user) throughput while the whole system throughput is ensured.
Keywords :
OFDM modulation; cellular radio; cochannel interference; quality of service; resource allocation; wireless channels; LTE system; OFDM; TD-LTE; cell edge user throughput; downlink; inter-cell resource allocation; inter-channel interference; modified inter-cell interference coordination algorithm; multitraffic QoS; quality of service; rate conversion; system throughput; Downlink; Interference; Quality of service; Real time systems; Resource management; Signal to noise ratio; Throughput;
Conference_Titel :
Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-3708-5
Electronic_ISBN :
978-1-4244-3709-2
DOI :
10.1109/WICOM.2010.5600749
