کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7223478 1470558 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact of phase noise on single-tap equalization for fast-OFDM signals under generic linear fading channels
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Impact of phase noise on single-tap equalization for fast-OFDM signals under generic linear fading channels
چکیده انگلیسی
In this correspondence, we present the performance evaluation of a low-complexity fast - orthogonal-frequency-division-multiplexing (F-OFDM) scheme, in the presence of phase-noise (PHN), working under the generic linear fading channels (like two-wave-with-diffuse-power (TWDP) multipath fading and modal dispersion in multi-mode-fiber optic channel). Here, a single-tap zero-forcing (ZF) equalizer is utilized to compensate the channel-impulse-response (CIR) without sacrificing data-rate, in which the discrete-cosine-transform (DCT) operation is replaced by the discrete-Fourier-transform (DFT) operation at the receiver. The phase noise variations are modelled by utilizing the random-walk paradigm, in which PHN is dependent on the model parameters/statistics. Therefore, main focus is on the impact of PHN on the performance of single-tap ZF equalization for F-OFDM signals. Simulation results are presented to illustrate efficiency and efficacy of underlying F-OFDM system, while working under TWDP, Rician and Rayleigh multipath fading linear channels. It can be inferred from results that the PHN severely affects/deteriorates the performance of F-OFDM based communication systems in terms of high bit-error-rate (BER), when the PHN variations are large. Moreover, the TWDP fading model is found to be quite appropriate for analyzing/investigating the BER performance of communication systems using the binary-shift-keying modulation technique.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 169, September 2018, Pages 382-391
نویسندگان
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