A Unified Spectrum Formulation for OFDM, FBMC, and F-OFDM

Comparison and evaluation between FBMC and OFDM systems

This paper studies the analytical bit error probability (BEP) of filter bank based multicarrier (FBMC) transmission and conventional cyclic prefix (CP) based orthogonal frequency division multiplexing (OFDM) systems. We first compare and evaluate these two schemes under the additive white Gaussian noise (AWGN) channel, and then extend the results to the Rayleigh channel. Closed form expressions...

Cooperative Sequential Spectrum Sensing Algorithms for OFDM

This paper considers the problem of spectrum sensing in cognitive radio networks when the primary user employs Orthogonal Frequency Division Multiplexing (OFDM). We develop cooperative sequential detection algorithms based on energy detectors and the autocorrelation property of cyclic prefix (CP) used in OFDM systems and compare their performances. We show that sequential detection provides muc...

Evaluation Performance of OFDM Mutlicarrier Modulation over Rayleigh and RicianStandard Channels Using WPT-OFDM Modulations

Last years, Wavelet Packet Modulation (WPM) or Wavelet Packet Transform based Orthogonal Frequency Division Multiplexing (WPT-OFDM) have been introduced to wired and wireless communication fields as efficient Multicarrier Modulation (MCM) techniques. The wavelets have interesting features such as flexibility, compatibility and localization in both time and frequency domains with no need to use ...

OFDM نوری تجزیه‌ی طیفی

یک روش جدید و مؤثر پهنای باند، برای انجام در مدولاسیون تقسیمات چندگانه فرکانس متعامد (OFDM)، روی کانال­های نوری IM/DD (آشکارسازی مستقیم شدت نور مدوله شده)، OFDM نوری تجزیه طیفی (SFO-OFDM) است. در اینجا نشان می‌دهیم که شرایط لازم و کافی برای سیگنال پریودیک باند محدود برای همه‌ی زمان‌ها، مثبت بودن آن است که به شکل ضرائب فرکانسی دنباله‌های وابسته می‌باشد. به جای فرستادن داده‌ها به صورت مستقیم روی ...

OPAM: Understanding OFDM and Spread Spectrum