DocumentCode
756860
Title
ALOHA/TDM Systems with Multiple Downlink Capacity
Author
Eaves, Reuben E.
Author_Institution
Lincoln Lab., MIT, Cambridge, MA
Volume
27
Issue
3
fYear
1979
fDate
3/1/1979 12:00:00 AM
Firstpage
537
Lastpage
541
Abstract
The concept of a processing satellite with multiple slotted ALOHA uplinks to efficiently fill a TDM downlink is extended to include multiple downlinks. Throughput is derived for a general configuration with 
ALOHA uplinks and 
TDM downlinks. An optimization procedure is described to select the and which maximize throughput for a given bandwidth constraint. The ALOHA/TDM system with multiple downlink capacity is found to be up to 32% more spectrum-efficient than the conventional slotted ALOHA system. The ALOHA/TDM system also has the potential for payload power and weight savings and decreased passive intermodulation problems.
ALOHA uplinks and TDM downlinks. An optimization procedure is described to select the and which maximize throughput for a given bandwidth constraint. The ALOHA/TDM system with multiple downlink capacity is found to be up to 32% more spectrum-efficient than the conventional slotted ALOHA system. The ALOHA/TDM system also has the potential for payload power and weight savings and decreased passive intermodulation problems.Keywords
Packet switching; Satellite communication, multiaccess; Time-division multiplexing; Bandwidth; Constraint optimization; Downlink; Frequency; Payloads; Satellites; Throughput; Time division multiplexing; Transmitters; Transmitting antennas;
fLanguage
English
Journal_Title
Communications, IEEE Transactions on
Publisher
ieee
ISSN
0090-6778
Type
jour
DOI
10.1109/TCOM.1979.1094430
Filename
1094430
Link To Document