5 papers · 1 filter
Bound on Peak-to-Average Power Ratio with Moment and Reduction Method
Hirofumi Tsuda
In this paper, we show bounds on Peak-to-Average Power Ratio (PAPR) and propose a method to reduce PAPR. These bounds are written in terms of moments of transmitted symbols. Furthe…
Moment-Based Bound on Peak-to-Average Power Ratio and Reduction with Unitary Matrix
Hirofumi Tsuda
Reducing Peak-to-Average Power Ratio (PAPR) is a significant task in OFDM systems. To evaluate the efficiency of PAPR-reducing methods, the complementary cumulative distribution fu…
Optimal Sequence and Performance for Desired User in Asynchronous CDMA System
Hirofumi Tsuda
We consider asynchronous CDMA systems in no-fading environments with a particular focus on a certain user. This certain user is called a desired user in this paper. In such a situa…
Randomization Approaches for Reducing PAPR with Partial Transmit Sequences and Semidefinite Relaxation
Hirofumi Tsuda, Ken Umeno
To reduce peak-to-average power ratio, we propose a method to choose a suitable vector for a partial transmit sequence technique. With a conventional method for this technique, we…
Method to Design UF-OFDM Filter and its Analysis
Hirofumi Tsuda, Ken Umeno
Orthogonal Frequency Division Multiplexing (OFDM) systems have been widely used as a communication system. In OFDM systems, there are two main problems. One of them is that OFDM si…