ABSTRACT
This chapter provides insight into the development process of wireless communications testbeds, starting with the classification of testbeds to deployment and field measurements with them. The research goal itself may range from plain Bit Error Rate measurements to entire networking experiments, other parameters such as desired throughput, form factor, configurability, testbed mobility, development time, and cost are equally relevant. The performance loss, often called implementation loss, is usually a result of hardware imperfections, but can also be relates to implementation issues such as fixed–point processing at baseband. The metrics measure the quality of the wireless channel to sustain multiple-input-multiple-output communications, and others measure the performance of the communication system. The chapter focuses on a series of experiments whose goal is to evaluate the impact of antenna separation on code performance for each of these lines of work. The two types of signaling are considers: multiplexing type schemes and space–time codes designes to harvest diversity or performance.
