A generalized Markov chain model for effective analysis of slotted IEEE 802.15.4

• A generalized analysis of the IEEE 802.15.4 medium access control (MAC) protocol in terms of reliability, delay and energy consumption is presented. The IEEE 802.15.4 exponential backoff process is modeled through a Markov chain taking into account retry limits, acknowledgements, and unsaturated traffic. Simple and effective approximations of the reliability, delay and energy consumption under low traffic regime are proposed. It is demonstrated that the delay distribution of IEEE 802.15.4 depends mainly on MAC parameters and collision probability. In addition, the impact of MAC parameters on the performance metrics is analyzed. The analysis is more general and gives more accurate results than existing methods in the literature. Monte Carlo simulations confirm that the proposed approximations offer a satisfactory accuracy.

Ämnesord

NATURVETENSKAP  -- Data- och informationsvetenskap -- Systemvetenskap, informationssystem och informatik (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences -- Information Systems (hsv//eng)

Nyckelord

IEEE 802.15.4 standard

Markov chain model

Model approximation

Retry limits and acknowledgement

Collision probability

Delay distributions

Effective analysis

Energy consumption

Existing method

Exponential backoff

IEEE 802.15.4

IEEE 802.15.4 standards

Markov Chain

Markov chain models

Medium access control protocols

Model approximations

Monte Carlo Simulation

Performance metrics

Computer simulation

Markov processes

Monte Carlo methods

Probability distributions

Reliability analysis

Sensors

Wireless networks

Wireless telecommunication systems

Medium access control

Systems engineering

Systemteknik

Publikations- och innehållstyp

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