Throughput Enhancement for a Noisy WLAN with SNR Based Frame Length Adjustment
Date Issued
2005
Date
2005
Author(s)
Chu, Hsiuen-Yi
DOI
en-US
Abstract
With the successful and widespreading wireless technology,
many hand-held devices may feature powerful CPUs, large main memories and disks, color displays, and multimedia capabilities.
It enables the vision of pervasive ubiquitous computing where users have network access anytime, anywhere.
However, in wireless environment, due to existences of noises and interferences,
frame errors occurs quite often which leading to a large number of retransmissions.
As a result, the good throughput performance suffers.
Lagecy frame length adjustment algorithm tend to use the history of failure/sucess transmission to make frame length decision.
We argue that the transmission history cannot reponse the channel quality properly.
In this paper, we propose a SNR-Based frame adjustment algorithm to improve the throughputs.
Our simulation shows that the SNR based algorithm has better throughputs than legacy history based algorithms.
Subjects
訊噪比
訊框調適
SNR
frame adjustment
Type
thesis
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