Design of a downlink power control scheme in multi-code CDMA mobile medicine system

2006 1st International Symposium on Wireless Pervasive Computing Pub Date : 2006-04-10 DOI:10.1109/ISWPC.2006.1613576

Chin-Feng Lin, Wen-Thong Chang, Hsin-Wang Lee, Shih-Ii Hung

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引用次数: 3

Abstract

In this paper, we proposed a downlink power control scheme to apply in the multi-code CDMA mobile medicine system. The mobile medicine system contains: (i) blood pressure and body temperature measurement value, (ii) medical signals measured by the electrocardiogram device, (iii) mobile patient's history, (iv) G.729 audio signal and MPEG-4 CCD sensor video signal. By the help of the multi-code CDMA spread spectrum communication system with downlink power control strategy to make it possible for transmission media in this system to meet the quality of service of mobile medicine system, and achieve the purpose of the maximum resource utilization. In different media, the power is controlled according to the demand for bit error rate. Higher transmission power is given to the media requesting lower bit error rate. Numerical analysis shows that the ratio of transmission power of voice, video and data virtual channels are approximately 1:2:13 when the bit error rates for the voice, video and data are set at 10/sup -3/, 10/sup -4/ and 10/sup -7/. It is similar to the ratio of SNIR of voice, video and data transmission requirement. Meanwhile, we also test related mobile medical signal transmission and simulation.

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多码CDMA移动医疗系统下行功率控制方案的设计

本文提出了一种适用于多码CDMA移动医疗系统的下行功率控制方案。移动医疗系统包含:(i)血压和体温测量值，(ii)心电图设备测量的医疗信号，(iii)移动患者病史，(iv) G.729音频信号和MPEG-4 CCD传感器视频信号。借助多码CDMA扩频通信系统的下行功率控制策略，使该系统中的传输介质能够满足移动医疗系统的服务质量，达到最大限度地利用资源的目的。在不同的介质中，功率是根据误码率的要求来控制的。要求较低误码率的介质具有较高的传输功率。数值分析表明，当语音、视频和数据的误码率分别为10/sup -3/、10/sup -4/和10/sup -7/时，语音、视频和数据虚拟信道的传输功率比约为1:2:13。它类似于语音、视频和数据传输的信噪比要求。同时，对相关的移动医疗信号传输和仿真进行了测试。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2006 1st International Symposium on Wireless Pervasive Computing

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