Frame Error Rate Evaluation of a C-ARQ Protocol with Maximum-Likelihood Frame Combining
نویسندگان
چکیده
In this paper a Cooperative-ARQ (C-ARQ) with a maximum-likelihood frame combiner (ML-FC) protocol is studied. C-ARQ is well suited for wireless transmission in either infrastructure or ad-hoc networks, as it exploits some of the unique characteristics of wireless media, such as the natural broadcast of wireless transmission and receiver diversity. The frame combiner can help in the case in which any received frame is correct, exploiting the same characteristics of wireless transmission but at a bit level. The paper studies the Frame Error Rate for this kind of system, showing that significant improvements can be obtained.
منابع مشابه
Achieving full diversity order by means of a cooperative- ARQ protocol
Cooperative protocols are a new and promising research field that can lead to a better understanding of wireless ad-hoc networking. In this paper we focus on cooperative hopby-hop ARQ (automatic repeat request) protocols. The main objective of a hop-by-hop ARQ is to prevent, by means of frame retransmission, the loss of frames due to transmission errors. Classically, when the receiver node dete...
متن کاملMaximum likelihood detection with arbitrary modulations in cooperative relay channels
This paper proposes a simple combining technique with arbitrary modulations for a cooperative relay scheme based on a Detect-and-Forward (DEF) relay protocol. Here we present Maximum Likelihood (ML) criterion detection at the destination which considers individual symbol error rate (SER) to facilitate the detection in noisy relay networks. In particular, our proposed algorithm is flexible to si...
متن کاملMaximum Likelihood Detection for Detect-and-Forward Relay Channels
This paper introduces a simple combining technique for cooperative relay scheme which is based on a Detect-and-Forward (DEF) relay protocol. Cooperative relay schemes have been introduced in earlier works but most of them ignore the quality of the source-relay (S-R) channel in the detection at the destination, although this channel can contribute heavily to the performance of cooperation scheme...
متن کاملError control for multimedia communications in wireless sensor networks: A comparative performance analysis
The emerging multimedia applications of Wireless Sensor Network (WSNs) impose new challenges in design of algorithms and communication protocols for such networks. In the view of these challenges, error control is an important mechanism that enables us to provide robust multimedia communication and maintain Quality of Service (QoS). Despite the existence of some good research works on error con...
متن کاملA Maximum Likelihood Training Appro Compensation Based on Piecewise
In our previous works, a maximum likelihood training approach was developed based on the concept of stochastic vector mapping (SVM) that performs a frame-dependent bias removal to compensate for environmental variabilities in both training and recognition stages. Its effectiveness was confirmed by evaluation experiments on Aurora2 and Aurora3 databases. In this paper, we present an extended ML ...
متن کامل