High-Throughput Random Access Via Codes on Graphs

Recently, Contention Resolution Diversity Slotted ALOHA (CRDSA) has been introduced as a simple but effective improvement to slotted ALOHA. It relies on MAC burst repetitions and on interference cancellation to increase the normalized throughput of a classic slotted ALOHA access scheme. CRDSA allows achieving a larger throughput than slotted ALOHA, at the price of an increased average transmitted power. A way to trade-off the increment of the average transmitted power and the improvement of the throughput is presented in this paper.

Provided by: University of Bologna Topic: Mobility Date Added: Oct 2010 Format: PDF

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