Title :
Performance and optimization of interference coordination in downlink TDD-LTE systems
Author :
Chen, Shuping ; Wang, Wenbo ; Zhang, Xing ; Hong, Wei
Author_Institution :
Wireless Signal Process. & Network Lab., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
The system characteristics of time division duplex-long term evolution (TDD-LTE) system and different inter-cell interference coordination (ICIC) algorithms are analyzed. Dynamic TDD-LTE system level simulator based on OPNET software is established to investigate the system performances with and without the interference coordination algorithms. Simulation results indicate that adopting the interference coordination algorithms can improve the performance of users in the edge of the cell significantly in the TDD-LTE system. Some recommendations for the central cell radius and power configuration are given. Also, a novel ICIC scheme for VoIP traffic is proposed, and simulation results show its efficiency.
Keywords :
3G mobile communication; radiofrequency interference; time division multiplexing; OPNET software; downlink TDD-LTE systems; interference coordination; optimization; time division duplex-long term evolution system; Algorithm design and analysis; Delay; Downlink; Frequency conversion; Interference; MIMO; OFDM; Signal processing algorithms; Traffic control; Wireless communication; interference coordination; mobile communications; soft frequency reuse; time division duplex-long term evolution;
Conference_Titel :
Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5263-7
Electronic_ISBN :
978-1-4244-5265-1
DOI :
10.1109/ICIME.2010.5477479
