Computer Science – Information Theory
Scientific paper
2011-10-14
Computer Science
Information Theory
Submitted to ICC 2012
Scientific paper
In this paper, we introduce Multi-Slots Coded ALOHA (MuSCA) as a multiple random access method for satellite communications. This scheme can be considered as a generalization of the Contention Resolution Diversity Slotted Aloha (CRDSA) mechanism. Instead of transmitting replicas, this system replaces them by several parts of a single word of an error correcting code. It is also different from Coded Slotted ALOHA (CSA) as the assumption of destructive collisions is not adopted. In MuSCA, the entity in charge of the decoding mechanism collects all bursts of the same user (including the interfered slots) before decoding and implements a successive interference cancellation (SIC) process to remove successfully decoded signals. Simulations show that for a frame of 100 slots, the achievable total normalized throughput is greater than 1.25 and 1.4 for a frame of 500 slots, resulting in a gain of 80% and 75% with respect to CRDSA and CSA respectively. This paper is a first analysis of the proposed scheme and opens several perspectives.
Boucheret Marie-Laure
Bui Huyen-Chi
Lacan Jerome
No associations
LandOfFree
An Enhanced Multiple Random Access Scheme for Satellite Communications does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An Enhanced Multiple Random Access Scheme for Satellite Communications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Enhanced Multiple Random Access Scheme for Satellite Communications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-523325