发明名称 |
Channel and quality of service adaptation for multimedia delivery over wireless networks |
摘要 |
A cross-layer architecture is provided for delivering multiple media streams over 3G W-CDMA channels in adaptive multimedia wireless networks. A resource management mechanism dynamically allocates resources among different media streams adapted to channel status and Quality of Service (QoS) requirements. By taking the time-varying wireless transmission characteristics into account, an allocation of resources is performed based on a minimum-distortion or minimum-power criterion. Estimates of the time-varying wireless transmission conditions are made through measurements of throughput and error rate. Power and distortion minimized bit allocation schemes are used with the estimated wireless transmission conditions to for dynamically adaptations in transmissions. |
申请公布号 |
US2002054578(A1) |
申请公布日期 |
2002.05.09 |
申请号 |
US20010895870 |
申请日期 |
2001.06.28 |
申请人 |
ZHANG QIAN;ZHU WENWU;ZHANG YA-QIN;WANG GUIJIN |
发明人 |
ZHANG QIAN;ZHU WENWU;ZHANG YA-QIN;WANG GUIJIN |
分类号 |
H04B7/005;H04L1/00;H04L1/18;H04L12/28;H04L12/56;H04W28/04;H04W28/24;H04W52/34;H04W72/04;H04W84/04;(IPC1-7):H04Q7/00 |
主分类号 |
H04B7/005 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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