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What is Cross Layer Modelling

Chapter 574
Encyclopedia of Information Science and Technology, Fourth Edition
It is a type of modelling that involves three basic stages namely: (i) wireless channel modelling, (ii) cross-layer extension of the wireless channel of interest to the layer of interest (iii) performance evaluation at the layer of interest.
Published in Chapter:
Throughput Dependence on SNR in IEEE802.11 WLAN Systems
Ikponmwosa Oghogho (Delta State University, Abraka-Oleh Campus, Nigeria)
Copyright: © 2018 |Pages: 12
DOI: 10.4018/978-1-5225-2255-3.ch574
Abstract
This chapter seeks to present the dependence of Throughput on Signal to Noise Ratio (SNR) in IEEE802.11 WLAN Systems. High throughput and low delays are presented as the requirements for indicating good performance of WLAN systems. The multiple communication data rates specified by the physical layer of IEEE802.11 WLANs which vary depending on the SNR observed is shown to appreciably influence the throughput experienced by the users. Cross layer modelling principles which simplifies the process of estimating the dependence of throughput on SNR is presented. Recent research findings which apply cross layer modelling principles to model the dependence of throughput on SNR only is presented along with future research directions.
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