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Enhanced Irregular Repetition Slotted ALOHA with Degree Distribution Adjustment in Satellite Network
- Source :
- GLOBECOM
- Publication Year :
- 2019
- Publisher :
- IEEE, 2019.
-
Abstract
- Random access is a key technology in satellite communication, as a large number of machine- type communication (MTC) terminals accessing the satellite makes it difficult to guarantee the access quality. Irregular repetition slotted ALOHA (IRSA) is one random access protocol relying on transmitting irregular number of replicas in multiple time slots, achieving a peak throughput at 0.8 in practical implementations. However, the probability of sending a certain number of replicas stays the same when given degree distribution, without considering the effects of different loads, which means there are extra useless packets sent and brings power waste in IRSA. Therefore, enhanced irregular repetition slotted ALOHA (EIRSA) based on tracking degree distribution control (TDDC) algorithm is proposed in this paper with adaptive degree distribution adjustment scheme to reduce the number of replicas while maintaining the same access performance with adaptation. Simulation results show that proposed protocol can achieve higher performance at the same power level and it is adaptive to load change.
- Subjects :
- Network packet
Computer science
business.industry
05 social sciences
050801 communication & media studies
020206 networking & telecommunications
Throughput
02 engineering and technology
Degree distribution
Power (physics)
0508 media and communications
Aloha
0202 electrical engineering, electronic engineering, information engineering
Communications satellite
Key (cryptography)
business
Random access
Computer network
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2019 IEEE Global Communications Conference (GLOBECOM)
- Accession number :
- edsair.doi...........cde0531d65e39425e7af5357101d0a75