Download Now Free registration required
In this paper, the authors investigate two variants of traditional Automatic Repeat reQuest (ARQ) protocols that exploit the disparity in bit error protection levels of multi-resolution M-ary phase-shift-keying for prioritizing the transport of more "Critical" messages in integrated voice/data and delay-sensitive applications (e.g., audio/video streaming). This cross-layer design can lead to a substantial performance improvement (e.g., better sound/picture quality or enhanced throughput of high priority messages) over non-prioritized transmission especially at low and moderate mean channel Signal-to-Noise Ratio (SNR) values or during network congestion.
- Format: PDF
- Size: 249.8 KB