Abdur Rahim

Hardware Implementation and Field Trials of Virtual MIMO

This is the last and the most important chapter of the physical layer development of the wireless sleep apnoea monitoring system. In this chapter, we present the successful implementation of the signal processing of virtual MIMO and cooperative network block coding algorithm in the developed wireless microwave transducers to establish cooperative communications between them for the best signal to noise ratio outcomes and the improvement of efficacy of the developed system.

Wireless On-Body Transducer and Field Trials

This is the first chapter of Part V Hardware Implementation and Field Trials. In this chapter, the physical layer development of the complete microwave wireless transducer is presented in the modular form.

Software and Hardware Design of Virtual MIMO in WBAN

This chapter is the last chapter of the four chapter Part III: RF Wireless On-Body Sensor Designs. Chapter 10 presented MIMO implementation using FPGA. An Alamouti transceiver system was implemented using FPGA in this chapter. The chapter also presented various system specifications used for the simulation of Alamouti transmit diversity techniques in the Rician fading channel for WBAN. Chapter 11 presented the detailed measurement procedure of the correlation coefficients in the dynamic WBAN channel using multiple patch antenna systems, and diversity gain were analyzed in all possible on-body application scenarios. Chapter 12 presented a novel approach to sensor cooperation using log-likelihoodratio-based cooperative communication protocols and techniques in wireless body area network channels for sleep apnoea monitoring systems.

Case Study: Microwave Sleep Apnoea Monitoring

The preceding two chapters have presented the most advanced physical layer developments of the microwave wireless sleep apnoea monitoring device, the relevant signal processing implementation and the field trial on a subject.

Power Amplifier and Oscillator Design for Wireless Power Transmission

The preceding chapters have presented the passive component designs of the BPF, LPF and antennas. BPFs are usually placed in the transmission link to filter out noises. The noises and interferences are due to the generation of inherent higher order harmonics and image frequencies in the up-conversion and down-conversion circuits before broadcasting the signal via the antennas. LPFs are usually placed in the reception link as the first component to filter out unwanted signals from higher frequencies. Antennas are the spatial filters and transducers between guided and free space waves, and usually, are placed adjacent to the BPFs or LPFs. Antenna design determine the communication bands of the system. All the passive design play significant roles in noise-filtering and channel selection. This is the last chapter of Part II: RF Wireless On-Body Sensor Design.

Microstrip Bandpass and Low-pass Filters

The preceding chapter has presents the outline of Part I: RF Wireless On-Body Sensor Designs and the system architecture and its technical specifications in previous chapters.

Wearable Antenna Design and Signal Propagation

The preceding chapter has presented the significance of the passive microwave filter design for signal purity and improving efficacy of the whole wireless communications system.

Wireless On-Body Sensor Architecture

The preceding Part I Wireless Monitoring Technology and MIMO in WBAN has covered the background information and the hypothesis of the microwave frequency wireless sleep monitoring system.

Network Coding Techniques in WBAN

In the previous chapter, we discussed MIMO techniques in WBAN system, and we concluded that it provided significant benefits in wireless monitoring.

MIMO Implementation Using FPGA

In the preceding Part 2, RF Wireless On-Body Sensor Designs the physical layer development of the RF/microwave on-body sensor was developed from the scratch.