NDLI: Capacity and QoS analysis for a novel packet based wireless access system

Content Provider	IEEE Xplore Digital Library
Author	Kempter, R. Schlegel, C.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Utah Univ., Salt Lake City, UT, USA (Kempter, R.)
Abstract	A recently proposed novel approach to asynchronous wireless random packet networking [P. Kota et al., March 2003] promises great enhancements in system performance. In this paper, mathematical and simulation results are presented which confirm the predictions made in [P. Kota et al., March 2003]. It is shown that the penalty in choosing random spreading sequences over orthogonal ones in terms of channel capacity vanishes quickly as the processing gain increases. The superiority of the proposed packet format over spread ALOHA is demonstrated by showing that the new access method is no longer collision limited and packets can overlap without being destroyed using joint detection at the base station receiver. As a result, assuming sufficient multiuser detector resources, outages are shown to be primarily caused by overloading the channel. The problem of exploiting the joint channel capacity can be addressed by the nodes, without complicated interaction with the base station. First results obtained by using a simple positive ACK scheme and low complexity rate finding algorithms in each of the nodes are presented which achieve up to 70% of the channel's theoretical capacity limit.
Starting Page	1432
Ending Page	1436
File Size	245812
Page Count	5
File Format	PDF
ISBN	0780379543
ISSN	10903038
DOI	10.1109/VETECF.2003.1285261
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations Channel capacity Multiaccess communication Payloads Throughput System performance Detectors Delay Quality of service Drives
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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