Performance analysis of adaptive filter channel estimated MIMO OFDM communication system
| Autor: | Bala Subrahmanyam N, Srinu Pyla, Padmaraju K |
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| Rok vydání: | 2018 |
| Předmět: |
General Computer Science
Computer science Orthogonal frequency-division multiplexing Channel estimation Data_CODINGANDINFORMATIONTHEORY Interference (wave propagation) RLS Electronic engineering Electrical and Electronic Engineering Wideband Convolution code Computer Science::Information Theory Channel code Space time coding ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS MIMO-OFDM MIMO OFDM LMS Adaptive filter Transmission (telecommunications) Convolutional code Modulation Bit error rate Space–time code Multipath propagation Communication channel |
| Popis: | Advanced Communication Systems are wideband systems to support multiple applications such as audio, video and data so and so forth. These systems require high spectral efficiency and data rates. In addition, they should provide multipath fading and inter-symbol interference (ISI) free transmission. Multiple input multiple output orthogonal frequency division multiplexing (MIMO OFDM) meets these requirements Hence, MIMO-OFDM is the most preferable technique for long term evaluation advanced (LTE-A). The primary objective of this paper is to control bit error rate (BER) by proper channel coding, pilot carriers, adaptive filter channel estimation schemes and space time coding (STC). A combination of any of these schemes results in better BER performance over individual schemes. System performance is analyzed for various digital modulation schemes. In this paper,adaptive filter channel estimated MIMO OFDM system is proposed by integrating channel coding, adaptivefilter channel estimation, digital modulation and space time coding. From the simulation results, channel estimated 2×2 MIMO OFDM system shows superior performance over individual schemes. |
| Databáze: | OpenAIRE |
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