Simulating MPEG-2 transport stream transmission over wireless ATM

被引：0
|
作者：
Kassler, A [1 ]
Schirpf, O [1 ]
机构：
[1] Univ Ulm, Dept Distributed Syst, D-89069 Ulm, Germany
来源：
ICASSP '99: 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS VOLS I-VI | 1999年
关键词：
D O I：
10.1109/ICASSP.1999.757486
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Within this paper we simulate the transmission of MPEG-2 Transport Stream (TS) Packets over a wireless ATM network. Based on a finite state radio channel model for the physical layer of a wireless ATM link including the characteristics of the ATM and MAC layer, different packing schemes are evaluated for encapsulating MPEG-2 Transport Stream packets in ATM Adaptation Layer 5 (AAL5) PDUs. We analyze the performance with respect to both delay and visual quality in terms of PSNR based on a calculated cell error ratio (CER) for each given state of the radio model. The statistics show, that the ITP (one MPEG-2 TS per AAL5 PDU) scheme outperforms all other packing schemes in terms of visual quality. At medium channel quality (38 dB), quality is judged to be good, although the CER may be as high as 25 %.
引用
收藏
页码：3057 / 3060
页数：4
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