Receive diversity based transmission data rate optimization for improved network lifetime and delay efficiency of...

Area of Science:

• Biomedical Engineering
• Wireless Communications
• Network Engineering

Background:

• Wireless Body Area Networks (WBANs) are crucial for cost-effective healthcare monitoring, but face challenges with energy-constrained sensors and timely data communication.
• Network lifetime and data delay are critical design considerations for WBANs to ensure continuous and efficient healthcare monitoring.

Purpose of the Study:

• To propose a Receive Diversity based Transmission Data Rate Optimization (RDTDRO) scheme for Multi-level Quadrature Amplitude Modulation (M-QAM) based WBANs.
• To enhance network lifetime and delay efficiency in WBANs by optimizing transmission data rate.

Main Methods:

• The RDTDRO scheme optimizes transmission data rate based on distance and receive antennas, meeting Bit Error Rate (BER) requirements.
• Performance analysis compares RDTDRO against Baseline and Rate Optimized schemes, focusing on network lifetime and delay difference.

Main Results:

• The RDTDRO scheme with a receive diversity order of 4 improved network lifetime by 1.30x over Baseline and 1.27x over Rate Optimized schemes at 0.3 m.
• At 0.3 m, RDTDRO with a receive diversity order of 4 achieved a delay difference of 0.75 μs over Baseline and 0.29 μs over Rate Optimized schemes.

Conclusions:

• The proposed RDTDRO scheme significantly enhances network lifetime and delay efficiency in WBANs.
• RDTDRO offers a viable solution for energy-efficient and timely data transmission in WBAN healthcare applications.