Abstract: Wireless communications performance is badly affected by channel fading issue. Some diversity techniques are used to reduce the impact of fading by conveying data over multiple independent fading channel paths and combine them at the receiver side. Cooperative diversity is a novel communication technique where multiple terminals use their resources in cooperative manner to form a virtual array that realizes spatial diversity gain in a distributed fashion. Cooperative relay system can obtain reliable communications, capacity gain and energy saving by mutual relaying among users of wireless network.

• Publication Date: 03-Aug-2014
• DOI: 10.15224/978-1-63248-005-7-47
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Abstract: There are numerous methodologies available for developing and testing software. The methodology we choose depends on factors such as the nature of project, the project schedule, and resource availability. Although most software development projects involve periodic testing, some methodologies focus on getting the input from testing early in the cycle rather than waiting for input when a working model of the system is ready. Those methodologies that require early test involvement have several advantages, but also involve tradeoffs in terms of project management, schedule, customer interaction, budget, and communication among team members. Agile Testing is a set of timesaving techniques specifically designed to make the work of agile testing teams easier and more productive. It is an empowering process that produces great results and has a simple mission: Get the best possible testing results with the least amount of work. These challenge- and solution-based techniques do not require maj

• Publication Date: 03-Aug-2014
• DOI: 10.15224/978-1-63248-005-7-49
• Views: 0
• Downloads: 0