Yi Wang, “Parameter optimization for a symmetric multicarrier transmission scheme, ” in

A parallel between Reed Solomon codes in the complex field and multicarrier transmission using OFDM is first presented. This shows that when the signal is sent over some channel composed of Gaussian plus impulse noise, the impulse noise can be removed by a procedure similar to channel decoding

Zero padding (ZP) of multicarrier transmissions has recently been proposed as an appealing alternative to the traditional cyclic prefix (CP) orthogonal frequency-division multiplexing (OFDM) to ensure symbol recovery regardless of the channel zero locations. In this paper, both systems are studied

of less than 1%. At higher complexity, 6 \Gamma 10dB of PAR reduction can be achieved for NlogN complexity per symbol. Tellado, J. and Cioffi, J.M.--PAR Reduction: 2 1 Introduction The high peak-to-average ratio of 15 dB in the Issue 1 and Issue 2 T1.413 ADSL standard DMT transmission technology has led

This paper proposes two efficient and distortionless schemes to significantly reduce the Peak to Average power Ratio (PAR) of DMT and OFDM signals. These methods are based on adding a symbol dependent, time domain signal to the original DMT/OFDM symbol to reduce its peaks. This time domain signal can be computed efficiently at the transmitter and can be easily stripped off the received signal. For the first method, called Tone Reservation (TR), the transmitter does not send data on a small subset of carriers, which are optimized for PAR reduction. This technique can achieve 3dB or 6dB of PAR reduction for a loss in data rate of less than :2% and 5% respectively. The second scheme, called Tone Injection (TI), is based on replicating the subsymbol constellation with known translating vectors. In this expanded constellation several points represent the same information, and therefore we can choose those points that minimize the transmitter PAR. This method achieves more than 6dB PAR reduc...

The multicarrier transmission using Hadamard transform for optical communications is a cost effective alternative compared to orthogonal frequency division multiplexing (OFDM) systems because of its significantly reduced hardware complexity. Especially it is suitable for shorter links of around 5

Optimal link adaption to the scattering function of wide sense stationary uncorrelated scattering (WSSUS) mobile communication channels is still an unsolved problem despite its importance for next-generation system design. In multicarrier transmission such link adaption is performed by pulse

Abstract-This paper deals with the carrier frequency synchronization of orthogonal multicarrier systems, which are an effective transmission technique for coping with the typical channel impairments present in mobile reception. A new carrier frequency detector is introduced and its performance

Abstract — This paper presents new results on the achievable capacity of multicarrier systems impaired by clipping at the transmitter. A general framework for capacity analysis of multicarrier systems with complex baseband signals is derived, based on the mutual information of the transmitted

Abstract — OFDM is an efficient transmission technique for frequency selective channels, but can severely suffer from the effects of Doppler, if the transmitter and/or receiver move with high velocities. In this paper, we present a multicarrier system with soft impulse shaping and tailbiting Max