Adaptive coding and modulation using imperfect CSI in cognitive BIC-OFDM systems
نویسندگان
چکیده
منابع مشابه
Adaptive Coding and Modulation in OFDM Systems using BICM and Rate-Compatible Punctured Codes
Within the EU FP6 Integrated Project WINNER, adaptive transmission in a TDMA/OFDMA system is investigated as a key technology for boosting the spectral efficiency of a new radio interface for 4G systems. Adaptive allocation and linkadaptation of subcarriers or groups of subcarriers based on short-term channel quality prediction offer significant adaptation and multi-user scheduling gains. The s...
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The noncoherent capacity of multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) systems is first derived. Then, an adaptive bit-interleaved coded modulation (BICM) scheme for the MIMO-OFDM system that exploits transmitter beamforming and variable-rate-variablepower (VRVP) QAM is proposed to enhance the throughput in a time-varying environment. The throughput of the v...
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The goal for the fourth generation (4G) of mobile communications system is to seamlessly integrate a wide variety of communication services such as high speed data, video and multimedia traffic as well as voice signals. One of the promising approaches to 4G is adaptive OFDM (AOFDM). In AOFDM, adaptive transmission scheme is employed according to channel fading condition with OFDM to improve the...
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Adaptive coded modulation is one of the key technologies used to enhance the capabilities of future communication network. Many adaptive modulation techniques have been investigated for the enhancement of transmission rate in combination with OFDM under AWGN channel .OFDM will provide much higher bandwidth efficiency. This is due to the fact that in OFDM the spectra of individual subcarriers ar...
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ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2016
ISSN: 1687-1499
DOI: 10.1186/s13638-016-0739-5