WiMAX (Worldwide Interoperability for Microwave Access) is a promising technology which can offer high speed voice, video and data services upto the requirements at the customer’s end. The objectives of this paper is to evaluate the Performance evaluation of a WiMAX system under various diversity schemes (Selection combining, Maximal ratio combining and Equal gain combining), employing differen...

HICKS, CHRIS WAYNE. Experimental and Electromagnetic Modeling of WaveguideBased Spatial Power Combining Systems. (Under the direction of Michael B. Steer.) Recent technological advancements and demands for high power sources at microwave and millimeter-wave frequencies have initiated extensive theoretical and experimental research in the area of quasi-optical and spatial power combining. The wo...

quantitative valuations of observed heterosis for 11 traits of 15 f1 hybrids generated by half diallel crosses of six diverse rice cultivars (domsefid, hashemi and binam, three iranian local cultivars; dorfak, kadous and ir30, three improved cultivars), were made in this study. fifteen f1 hybrids and their parents were evaluated in a randomized complete block design with three replications at t...

in order to produce new hybrids and evaluate the general and specific combining ability of sunflower inbred lines and restorers, four inbred lines and six restorers were selected in 2004. twenty-four f1 hybrids were derived in 2004 and evaluated on a rcbd design with three replications in 2005. the results of variance analysis showed that treatments were significantly different for all traits e...

Coherent combining of fiber amplifiers is a promising technique to increase the overall output power from efficient and compact laser sources while simultaneously maintaining beam quality. Active phase controlling of master oscillator power amplifiers (MOPA) is one of the most common coherent beam combining (CBC) architecture [1-3]. Up to now, the highest-power obtained by CBC and CBC of larges...

Abstract— We propose and analyze in this paper a new adaptive power controlled minimum selection generalized selection combining (MS-GSC) diversity scheme termed joint combining and power control (JCPC). The key idea is to meet the required quality of service while using the minimum possible transmit and processing power. Four power control variants accounting for practical implementation const...