Iterative Decision-Aided Clipping Compensation and Its Application to Scalable Video Transmission With Multiband OFDM

@article{citeulike:2398923, abstract = {Deliberate digital clipping is a simple and efficient way of controlling the peak-to-average power ratio of orthogonal frequency division multiplexing (OFDM) systems. However, a clipping is a nonlinear process that may lead to significant distortion and performance loss. An iterative time-domain decision-aided clipping compensation framework is proposed to mitigate the distortion caused by the intentional clipping with the additional constraint of out-of-band noise filtering, and it is compared with the existing frequency-domain scheme. It incorporates the simple additive distortion model and the minimum mean-square distortion (MMSD) model, with the options of hard and soft symbol estimation. Extensive simulation results are provided for the performance comparison among different schemes. The MMSD-distortion-model-based frequency-domain clipping compensation gives the best performance and is applied to scalable video transmission with a multiband OFDM. Simulations demonstrate an effective mitigation of the performance loss by the applied compensation algorithm}, author = {Zhang, Hong and Xia, Xiang-Gen and Zhang, Qian and Zhu, Wenwu }, booktitle = {Vehicular Technology, IEEE Transactions on}, citeulike-article-id = {2398923}, doi = {10.1109/TVT.2007.891468}, journal = {IEEE Transactions on Vehicular Technology}, keywords = {analysis, cancellation, clipping, communication, compensation, decision-aided, digital, distortion, distortion-model-based, division, filtering, frequency, frequency-domain, iterative, least, mean, mean-square, methods, minimum, model, modulation, multiband, multiplexing, noise, ofdm, orthogonal, out-of-band, peak-to-average, power, ratio, reconstruction, scalable, squares, systems, theory, time-domain, time-frequency, transmission, video}, month = {March}, number = {2}, pages = {756--765}, posted-at = {2008-02-19 13:59:59}, priority = {2}, title = {Iterative Decision-Aided Clipping Compensation and Its Application to Scalable Video Transmission With Multiband OFDM}, url = {http://dx.doi.org/10.1109/TVT.2007.891468}, volume = {56}, year = {2007} }

TY - JOUR ID - citeulike:2398923 L3 - citeulike-article-id:2398923 TI - Iterative Decision-Aided Clipping Compensation and Its Application to Scalable Video Transmission With Multiband OFDM T2 - Vehicular Technology, IEEE Transactions on JF - IEEE Transactions on Vehicular Technology VL - 56 IS - 2 SP - 756 EP - 765 N2 - Deliberate digital clipping is a simple and efficient way of controlling the peak-to-average power ratio of orthogonal frequency division multiplexing (OFDM) systems. However, a clipping is a nonlinear process that may lead to significant distortion and performance loss. An iterative time-domain decision-aided clipping compensation framework is proposed to mitigate the distortion caused by the intentional clipping with the additional constraint of out-of-band noise filtering, and it is compared with the existing frequency-domain scheme. It incorporates the simple additive distortion model and the minimum mean-square distortion (MMSD) model, with the options of hard and soft symbol estimation. Extensive simulation results are provided for the performance comparison among different schemes. The MMSD-distortion-model-based frequency-domain clipping compensation gives the best performance and is applied to scalable video transmission with a multiband OFDM. Simulations demonstrate an effective mitigation of the performance loss by the applied compensation algorithm KW - analysis KW - cancellation KW - clipping KW - communication KW - compensation KW - decision-aided KW - digital KW - distortion KW - distortion-model-based KW - division KW - filtering KW - frequency KW - frequency-domain KW - iterative KW - least KW - mean KW - mean-square KW - methods KW - minimum KW - model KW - modulation KW - multiband KW - multiplexing KW - noise KW - ofdm KW - orthogonal KW - out-of-band KW - peak-to-average KW - power KW - ratio KW - reconstruction KW - scalable KW - squares KW - systems KW - theory KW - time-domain KW - time-frequency KW - transmission KW - video AU - Zhang, Hong AU - Xia, Xiang-Gen AU - Zhang, Qian AU - Zhu, Wenwu PY - 2007/03// UR - http://dx.doi.org/10.1109/TVT.2007.891468 ER -