关键词: 分布式网络架构, 正交频分多址接入, 群小区, 功率控制, 中断概率, 资源池

Abstract:

To analyze the inter-cell interference of orthogonal frequency division multiple access (OFDMA) based distributed network architecture, with the example of generalized distributed cellular architecture-Group Cell, the interference conditions of Group Cell without power control and with signal-to-interference ratio (SIR) balancing power control, stepwise removal algorithm (SRA) are analyzed respectively. The system outage probability compared to traditional cellular structure is evaluated. Analyses and simulation results indicate that the inter-cell interference of Group Cell will not increase more than traditional cellular structure. Group Cell architecture with centralized resource scheduling and allocating also makes it possible to improve the system performance further. Based on these analyses, the concept of Resource Pooling is proposed.

Key words: distributed network architecture, orthogonal frequency division multiple access, group cell, power control, outage probability, resource pooling