Intelligent Reflecting Surface Meets OFDM: Protocol Design and Rate Maximization

Performance Analysis of cooperative SWIPT System: Intelligent Reflecting Surface versus Decode-and-Forward

In this paper, we explore the impacts of utilizing intelligent reflecting surfaces (IRS) in a power-splitting based simultaneous wireless information and power transfer (PS-SWIPT) system and compare its performance with the traditional decode and forward relaying system. To analyze a more practical system, it is also assumed that the receiving nodes are subject to decoding cost, and they are on...

Convex Approximated Weighted Sum-Rate Maximization for Multicell Multiuser OFDM

This letter considers the weighted sum-rate maximization (WSRMax) problem in downlink multicell multiuser orthogonal frequency-division multiplexing system. The WSRMax problem under per base station transmit power constraint is known to be NP-hard, and the optimal solution is computationally very expensive. We propose two lesscomplex suboptimal convex approximated solutions which are based on s...

Intelligent Planning Meets Intelligent Planners

Discriminative Preordering Meets Kendall's Tau Maximization

This paper explores a simple discriminative preordering model for statistical machine translation. Our model traverses binary constituent trees, and classifies whether children of each node should be reordered. The model itself is not extremely novel, but herein we introduce a new procedure to determine oracle labels so as to maximize Kendall’s τ . Experiments in Japanese-to-English translation...

Rate Maximization in MISO OFDM System with Per-Subcarrier Antenna Selection and Power Balancing

Abstract— In a multiple input single output orthogonal frequency division multiplexing (MISO OFDM) system, per-subcarrier antenna selection is employed to improve the data rate over frequency selective fading channels. The antenna selection is based on the channel gain and the power balancing is achieved through allocating equal number of subcarriers to each antenna. This scheme of antenna sele...