Subchannel assignment and collision resolution enhancements for receiver-initiated MAC protocols

Muralidhar Medidi; Balvinder Kaur Thind

doi:10.1117/12.548419

10 August 2004 Subchannel assignment and collision resolution enhancements for receiver-initiated MAC protocols

Proceedings Volume 5440, Digital Wireless Communications VI; (2004) https://doi.org/10.1117/12.548419
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

Multiple channel access interference is a major cause of throughput degradation in wireless networks because of the shared channel. IEEE 802.11 MAC protocol is a standard for medium access in wireless LANs, but suffers from contention and co-channel interference and thus performs poorly. We propose to use receiver-initiated MAC protocol, instead of the sender-oriented 802.11, to address these issues. The proposed protocol is based on carrier sensing and resolves collisions among senders based on a deterministic tree splitting algorithm to minimize the retransmissions of data packets due to hidden terminals. Further, subchannel assignment is used to exploit the parallel transmissions that are possible in multi-channel networks; thus, reducing the channel contention and improving the throughput. We also present simulation results, using ns-2 simulator, to evaluate our approach and compare it with 802.11. The simulation results indicate that collision resolution with multiple subchannel access is more effective in throughput and provides better packet delays than 802.11 MAC. We also observe that the maximum throughput is achieved when the channel is divided into three or four subchannels irrespective of the size and shape of the network and traffic load.

Citation Download Citation

Muralidhar Medidi and Balvinder Kaur Thind "Subchannel assignment and collision resolution enhancements for receiver-initiated MAC protocols", Proc. SPIE 5440, Digital Wireless Communications VI, (10 August 2004); https://doi.org/10.1117/12.548419

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
12 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Receivers

Standards development

Chromium

Local area networks

Resolution enhancement technologies

Artificial intelligence

Data acquisition

Show All Keywords

Keywords/Phrases

Search In:

Publication Years