A Markov Decision Process (MDP)-Based Congestion-Aware Medium Access Strategy for IEEE 802.15.4

Author

Shrestha, Bharat ; Hossain, Ekram ; Choi, Kae Won ; Camorlinga, Sergio

fYear

2011

fDate

5-9 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

IEEE 802.15.4 is a popular technology for short-range wireless networking due to the features such as low duty cycle operation, low power consumption, and both contention-based and contention-free transmissions. This standard can be enhanced to provide an optimal medium access mechanism in presence of congestion in the network. We present a Markov decision process (MDP)-based medium access control (MAC) model for IEEE 802.15.4 for the optimal use of contention and contention-free period to minimize energy consumption in repeated transmissions and carrier sensing without degrading latency in packet transmission. The simulation results show that the MDP strategy works more efficiently in presence of congestion when compared to a non- optimal (i.e., traditional) slotted CSMA/CA scheme.

Keywords

Zigbee; access protocols; carrier sense multiple access; power consumption; radio networks; telecommunication congestion control; CSMA-CA scheme; IEEE 802.15.4; MAC model; MDP strategy; Markov decision process; congestion-aware medium access strategy; contention-free transmissions; duty cycle operation; energy consumption; medium access control; power consumption; short- range wireless networking; IEEE 802.15 Standards; Markov processes; Multiaccess communication; Performance evaluation; Resource management; Sensors; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE

Conference_Location

Houston, TX, USA

ISSN

1930-529X

Print_ISBN

978-1-4244-9266-4

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2011.6133619

Filename

6133619