Improving the performance of the FPBA algorithm using random transmitter power levels
To enhance the throughput of the framed pseudo-Bayesian ALOHA (FPBA) algorithm used for reservation in wireless ATM, a scheme is described in which multiple power levels are used at the transmitters. One of the simultaneously sent packets can often be successfully received due to the power captur...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Institute of Electrical Engineers
2001
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/25810/ http://irep.iium.edu.my/25810/ http://irep.iium.edu.my/25810/ http://irep.iium.edu.my/25810/1/IEECOMMUN2001.pdf http://irep.iium.edu.my/25810/4/25810_Improving%20the%20performance_SCOPUS.pdf |
| Summary: | To enhance the throughput of the framed pseudo-Bayesian ALOHA (FPBA) algorithm
used for reservation in wireless ATM, a scheme is described in which multiple power levels are used at
the transmitters. One of the simultaneously sent packets can often be successfully received due to the
power capture effect. The authors consider a capture model in which the transmitter captures the
channel only if its signal-to-interference ratio is above some threshold when received at the central
station. Rayleigh fading, shadowing and path loss all contribute to the capture effect in conjunction
with the new physically induced random transmission power levels. Throughput equations of the
algorithm are derived and the performance of the algorithm waiting time and throughput in the
presence of the wireless channel is illustrated. Results show significant improvement in the throughput
and low stable access delay for a wide range of traffic conditions. |
|---|