Spectrum efficiency of Fixed WiMAX OFDM network in the presence of co-channel interference with diversity combining
| Autor: | S. Thai Subha, Vidhyacharan Bhaskar |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Engineering
Orthogonal frequency-division multiplexing business.industry Optimal rate adaptation with constant transmit power policy Real-time computing ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Co-channel interference General Medicine Spectral efficiency Data_CODINGANDINFORMATIONTHEORY Channel inversion with fixed rate policy Transmitter power output Communications system WiMAX Optimal power and rate adaptation policy Diversity combining Electronic engineering Truncated channel inversion with fixed rate policy Maximal-ratio combining business Co channel interference Engineering(all) |
| Zdroj: | Procedia Engineering. 30:341-347 |
| ISSN: | 1877-7058 |
| DOI: | 10.1016/j.proeng.2012.01.870 |
| Popis: | 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 the Performance evaluation of a WiMAX system under various diversity schemes (Selection combining, Maximal ratio combining and Equal gain combining), employing different adaptive transmission policies, such as Optimal power and rate adaptation policy, Optimal rate adaptation with constant transmit power policy, Channel inversion with fixed rate policy, and Truncated channel inversion policy, subjected to co-channel interference. The WiMAX system incorporates OFDM with BPSK modulation as the transmission scheme. Simulated results of the estimated spectrum efficiency shows that the implementation of Optimal power and rate adaptation policy is highly effective to combat co-channel interference in the WiMAX communication system, under Selection combining. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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