By Topic

An optimized multiple access control protocol for a 'little LEO' satellite store-and-forward global data network

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Baozhong Cheng ; Sch. of Electron. & Inf. Eng., Northern Jiaotong Univ., Beijing, China ; Jeff Ward ; Marting Sweeting

The reservation method used in a TD-SRMA protocol determines the protocol's efficiency. The typical reservation methods proposed are SALOHA and VCR-SALOHA (varying calling rate SALOHA). SALOHA is relatively simple to realize but it cannot adapt well to the dynamic traffic pattern in a 'little LEO' satellite network. VCR-SAOHA can better adapt the dynamic traffic, but its highest efficiency on average is still 0.38. To improve the reservation efficiency, a new reservation method, AP-SALOHA (adaptive polling and SALOHA), is proposed. In AP-SALOHA, polling is used for the stations, which have high probability to upload a message, and SALOHA is used for the stations, which have low probability to upload messages. Different from SALOHA and VCR-SALOHA, the length of a reservation period in AP-SALOHA varies according to the network traffic. Analysis and simulation show that AP-SALOHA provides better throughput performance. About 19% improvement over VCR-SALOHA can be achieved.

Published in:

Parallel and Distributed Computing, Applications and Technologies, 2003. PDCAT'2003. Proceedings of the Fourth International Conference on

Date of Conference:

27-29 Aug. 2003