A Decentralized Downlink Dynamic ICIC Method for Multi-cell OFDMA System
Inter-cell Interference Coordination (ICIC) is one of the key technologies in the multi-cell radio resource management. With radio access networks in LTE/LTE-Advanced more heterogeneous and .at, decentralized ICIC algorithms are more adaptable than centralized algorithms. This paper presents a decentralized subcarrier collision arbitrating algorithm among adjacent cells, which is proved to be distributed and collisionfree. Based on this algorithm, we propose an ideal synchronous ICIC method and a more practical asynchronous ICIC method, which utilize the information exchange capability among adjacent cells provided by the new systems. The simulation results show that this scheme can allocate subcarriers among adjacent cells in a distributed manner, and it is fair and adaptive to traf.c loads. The target of interference coordination is achieved, and a good spatial multiplexing ef.ciency can be attained.
Decentralized Algorithms ICIC OFDMA
Shujun Wang Yuan Zhang Guangguo Bi
National Communication Research Laboratory Southeast University Nanjing, China National Communication Research Laboratory Southeast UniversityNanjing, China
国际会议
南京
英文
1-5
2011-11-09（万方平台首次上网日期，不代表论文的发表时间）