CDMA系统中基于帧的预约分组数据传输
FRAME-BASED PACKET RESERVATION MULTI-ACCESS METHOD FOR DATA TRANSMISSION IN CDMA CELLULAR SYSTEM
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摘要: 本文在保持CDMA蜂窝通信系统变速率话音固定接入的同时,针对数据业务的需要,提出了一种随机预约分组接入方法。在假设数据分组的到达为泊松分布的情况下,应用EPA(平衡点分析)方法对接入方案的性能如通过率和时延等进行了分析。数值仿真结果显示,在保持较小时延的同时,该方法显著提高了系统支持接入的数据终端数。
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关键词:
- 多址接入; 码分多址; 数据传输
Abstract: In this paper a frame-based packet reservation multi-access method is presented for data transmission in CDMA cellular system. Assumed that the number of arriving data packets follows a Poisson distribution, this paper analyzes the throughput and mean delay of data services using equilibrium point analysis (EPA), Simulation results indicate that the proposed scheme can support more data terminals than the traditional cellular system and achieve acceptable mean delay. -
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