A High-speed Indoor Wireless Communication System Employing an Anti-multipath Modulation Scheme

采用抗多径调制方案的高速室内无线通信系统

• 批准号: 08455184
• 负责人: TAKEUCHI Tsutomu
• 金额: $ 4.29万
• 依托单位: Kyoto Sangyo University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08455184/
• 关键词: WLAN; multipath propagation; anti-multipath modulation scheme; multi-media communication; delay profile; time delay; mobile communication; fading

(1) Indoor multipath propagation measurement with high time delay resolutionA home-made channel sounder has revealed the mechanism of indoor multipath propagation characteristics in 3GHz band.(2) Analysis on indoor multipath propagationThree dimensional indoor propagation predictions by ray-tracing considering the effect of windows penetration were done. The results has shown a realistic delay profiles resembling the experimental results.(3) Consideration on generating method of Active fadingFrom above results, Active fading generating method has been investigated to ensure the best performance. The resulting method is the simultaneous transmission of signals from the antennas positioned at the center of the room with slight offset. This was estimated by a graphical simulation tool developped by investigator.(4) Construction of laboratory experimental setup for bit error rate measurementA laboratory experiment system was set up for bit error rate measurement under Active fading environment and frequency selective fading environment. This system ensures the performance comparison between above two fading environments.(5) Considerations on bit rate enhancementFor future work, to achieve more than a hundred Mb/s transmission rate, frequency division multiplexing will be considered.

(1)高时延分辨率的室内多径传播测量国产信道探测仪揭示了3GHz频段室内多径传播特性的机理。(2)室内多径传播分析考虑光线追踪影响的三维室内传播预测窗户渗透已经完成。结果显示了与实验结果相似的真实延迟分布。(3)对主动衰落生成方法的考虑根据以上结果，研究了主动衰落生成方法以确保最佳性能。由此产生的方法是从位于房间中心的天线（有轻微偏移）同时传输信号。 (4)误码率测量实验室实验装置的构建建立了主动衰落环境和频率选择性衰落环境下误码率测量的实验室实验系统。该系统确保了上述两种衰落环境之间的性能比较。(5)比特率增强的考虑对于未来的工作，为了实现超过100 Mb/s的传输速率，将考虑频分复用。

项目成果

松浦良延: "屋内Active Fading環境下における耐多重波PSK-RZ方式の伝送誤り率特性の検討" 電子情報通信学会技術研究報告アンテナ・伝播. vol.96,no.523. 37-48 (1997)

Yoshinobu Matsuura：“室内有源衰落环境下抗多波PSK-RZ系统的传输误码率特性研究”IEICE技术研究报告天线和传播第96卷，第523期（1997年）。

Hiroyoshi Ishikawa, Tsutomu Takeuchi and Takaya Tanaka: ""A Study on Indoor Propagation Meodel : Effects of Windows, Antenna Pattern and Wall Characteristics" (in Japanese)" Technical Report of IEICE. A・P97-160. (1998)

Hiroyoshi Ishikawa、Tsutomu Takeuchi 和 Takaya Tanaka：“室内传播 Meodel 的研究：窗户、天线图案和墙壁特性的影响”（日语）”IEICE A·P97-160 的技术报告。

石川 広吉: "屋内多重遅延モデルに関する一考察" 電子情報通信学会技術研究報告. A-P97-160. (1998)

Hiroyoshi Ishikawa：“室内多重延迟模型的研究”IEICE 技术报告（1998）。

Tsutomu Takeuchi: "A Simple Solution for High Speed Wireless LAN:Active Fading and PSK-RZ" Proceedings of 1997 Wireless Communications Conference. 201-204 (1997)

Tsutomu Takeuchi：“高速无线 LAN 的简单解决方案：有源衰落和 PSK-RZ”1997 年无线通信会议记录。

Tsutomu Takeuchi and Takaya Tanaka: ""A Simple Solution for High Speed Wireless LAN : Active Fading and PSK-RZ"" Proceedings of 1997 Wireless Communications Conference. 201--204 (1997)

Tsutomu Takeuchi 和 Takaya Tanaka：“高速无线 LAN 的简单解决方案：有源衰落和 PSK-RZ”1997 年无线通信会议记录。