[PDF] Top 20 Adaptive Modulation and Coding Rate for OFDM Systems

... higher rate codes, which give a higher coding gain while not suffering the implementation penalty from a large value of ...lower rate code 1/n, then there are only 2k computations for each node at ... See full document

... Abstract— OFDM technology promises to be a key technique for achieving the high data capacity and spectral efficiency requirements for wireless communication ...of adaptive modulation allows a ... See full document

... selected modulation increase ascendingly with the increase of the input parameters especially the BER, MER, SNR and present ...selected modulation is of low order range however Yellow color in this surface ... See full document

... of adaptive modulation in a narrow-band ...the modulation control parameters was proposed by Otsuki et ...required modulation mode used was proposed by Torrance et ...the modulation ... See full document

... same modulation and coding scheme, operating over an additive white Gaussian noise (AWGN) channel, has the same performance as the system under ...the coding rate together with the energy and ... See full document

... order modulation modes on the sub-carriers exhibiting higher signal- to-noise ...the coding rate of error correction coding schemes, can be adapted at the transmitter according to the channel ... See full document

... source coding rate (SVC) optimization, optimum time slicing for layer coded transmission, and a cross-layer adaptive modulation and coding scheme ...broadcasting adaptive content ... See full document

... consumer systems with large coverage ...the modulation technique and coding rates dynamically to maximize the throughput and reduce the Bit Error Rate depending on the channel conditions [1, ... See full document

... source coding have addressed rate-distortion analysis in both noiseless and noisy ...source coding in the context of orthogonal frequency division multiplexing (OFDM) ...source coding ... See full document

... transmission rate and coding rate while using a Reed-Solomon code RS (n, ...multicast rate control based on ...fixed rate of FEC code and formulate a system through- put maximization ... See full document

... amplitude modulation (AQAM) [2] for exploiting the time-variant Shannonian channel capacity of narrowband fading ...variable coding rate concatenated coded schemes [3], at the University of Stanford ... See full document

... STT-coded OFDM is attractive, since the decoding complexity reduced, as demonstrated by the re- cent surge in research interest [13], ...STT-coded OFDM systems to improve their ... See full document

... ABSTRACT: OFDM has been proved to be an efficient and promising multicarrier modulation technique for high data rate modern communication ...an OFDM system and its performance is compared with ... See full document

... of adaptive orthogonal frequency division multiplex (AOFDM) video systems are proposed for interactive communications over wireless ...subband adaptive OFDM modems can provide a lower bit ... See full document

... standards. Adaptive modulation forms an integral part of SDR system with robust and high data rate ...analyzed adaptive modulation scheme with their performance in changing channel ... See full document

... offset is considered. To make fair comparisons, no phase noise resulting from the instability of local oscillators is assumed, and the initial value of the CFO estimate is set zero. In Fig. 11, the learning curves of ... See full document

... channel coding rates can also be selected adaptively for both the base and enhancement layers based on the channel con- ...source coding errors and possible chan- nel error e ff ... See full document

... as modulation and channel coding is improve in the bit error rate performance, by adding redundancy to the transmitted ...by Adaptive Modulation and ... See full document

... multi-carrier modulation technique such as fourth generation (4G) wireless communication system that an attractive candidate for OFDM ...systems. OFDM system offers immunity to multipath ... See full document

... wireless systems that use multiple transmit and receive antennas allow a gain in reliability and ...of modulation technologies like BPSK, QPSK, with mobile wireless channel AWGN used and the results shows ... See full document