Increasing Capacity with Spatial Division Multiple Access in Wireless Information Networks

通过空分多址增加无线信息网络的容量

• 批准号: 9318654
• 负责人: Richard Roy
• 金额: $ 29.91万
• 依托单位: ArrayComm Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9318654&HistoricalAwards=false
• 关键词: Increasing; Capacity; Spatial; Division; Multiple

Spatial Division Multiple Access (SDMA) is a technology with promising prospects for increasing the capacity of Wireless Communications Networks (WCN's). By employing low-cost arrays of antennas and sophisticated signal processing techniques, SDMA provides directional radio transmission and reception capabilities which dramatically increase the number of simultaneous links that can be supported on a single frequency channel. The basic SDMA components - emitter location estimation, spatially selective transmission and spatially selective reception - were validated during the Phase I research effort by a series of half- duplex receive-only and transmit-only experiments. The proposed Phase II effort is to build a fully functional,full-duplex, SDMA prototype for analog cellular telephones (AMPS protocol). This prototype will be used for SDMA algorithm refinement and development, and will serve as a data collection platform for SDMA radio-frequency environment studies. The Phase III effort will be to conduct operational tests with the assistance of a cellular service provider. The market potential for a system that provides increased capacity in wireless information/communication networks is immense. Over 200 million domestic and foreign subscribers are predicted by the year 2000 in a $100 billion annual market. Current systems are at or near capacity in a market which is one-fifth as large, so techniques for increasing capacity are vital to the industry.

空分多址(SDMA)技术是一种具有广阔应用前景的无线通信网络扩容技术。通过采用低成本的天线阵列和复杂的信号处理技术，SDMA提供定向无线电传输和接收能力，这大大增加了单个频率通道上可以支持的同时链路的数量。在第一阶段的研究工作中，通过一系列只接收和只发送的半双工实验，验证了基本的SDMA组件-发射器位置估计、空间选择性传输和空间选择性接收。拟议的第二阶段工作是构建用于模拟蜂窝电话(AMPS协议)的全功能、全双工、SDMA原型。该原型将用于SDMA算法的改进和开发，并将作为SDMA射频环境研究的数据收集平台。第三阶段的工作将是在移动服务提供商的协助下进行操作测试。在无线信息/通信网络中提供增加容量的系统的市场潜力是巨大的。预计到2000年，在每年1000亿美元的市场中，国内外用户将超过2亿。目前的系统在一个只有五分之一大小的市场上已经达到或接近产能，因此提高产能的技术对该行业至关重要。