NDLI: Further results on throughput optimization using adaptive PHY/MAC/APP layer techniques

Content Provider	IEEE Xplore Digital Library
Author	Annamalai, A. Odejide, O.
Copyright Year	2011
Description	Author affiliation: Center of Excellence for Communication Systems Technology Research, Prairie View A&M University, TX 77446, USA (Annamalai, A.; Odejide, O.)
Abstract	Cross-layer design breaks away from traditional wireless network design where each layer of the protocol stack is optimized independently. We develop a cross-layer design framework that judiciously combines adaptive modulation at the physical (PHY) layer, packet length adaptation strategy at the medium access control (MAC) layer, and source rate adaptation at the application (APP) layer in order to maximize the user throughput over a myriad of fading environments. Specifically, optimization equations for each of the design variables are derived in closed-form and an efficient (i.e., reduced search space) algorithm for the joint triplet-parameter optimization is also presented. The impact of restricting the design parameters (to a limited number of feasible values) on the throughput performance is also investigated. Numerical results reveal that it is sufficient to adapt the symbol rate alone in the low mean signal-to-noise ratio (SNR) regime while joint-optimization of both packet length and constellation size parameters is required in better channel conditions, to achieve the maximum throughput in a myriad of wireless fading environments.
Starting Page	979
Ending Page	984
File Size	357546
Page Count	6
File Format	PDF
ISBN	9781467300797
ISSN	21557578
e-ISBN	9781467300810
DOI	10.1109/MILCOM.2011.6127807
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-11-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal to noise ratio Throughput Optimization Modulation Streaming media Rayleigh channels throughput optimization cross-layer optimization adaptive transmission techniques
Content Type	Text
Resource Type	Article

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