An Adaptive and Spectrally Efficient Multi-Channel Medium Access Control Protocol for Dynamic Ad Hoc Networks

Area of Science:

• Computer Science
• Wireless Networking
• Network Protocols

Background:

• Ad hoc networks require efficient Medium Access Control (MAC) protocols.
• Evolution from single-channel to multi-channel MAC (MMAC) protocols addresses modern network demands.
• Performance evaluation of MMAC protocols under saturated traffic is crucial.

Purpose of the Study:

• Compare popular MMAC protocols under saturated network traffic.
• Propose improvements to MMAC protocols for enhanced performance.
• Introduce a novel, dynamically adaptive MMAC protocol (E-SA-MMAC).

Main Methods:

• Simulated popular MMAC protocols using a validated IEEE 802.11 standard simulation.
• Developed a novel dynamically adaptive MMAC protocol (E-SA-MMAC).
• Compared protocol performance based on throughput, Jain's fairness index, and channel access delay with varying stations and channels.

Main Results:

• The proposed E-SA-MMAC protocol demonstrated superior performance.
• Achieved up to 11.9% higher throughput under constrained channels.
• Reduced channel access delays by up to 18.3% compared to existing protocols.

Conclusions:

• The E-SA-MMAC protocol offers significant performance benefits over existing MMAC protocols under saturated traffic.
• The protocol's effectiveness is validated across varying numbers of wireless channels and ad hoc stations.
• E-SA-MMAC is well-suited for dynamic ad hoc network deployments.