Dynamic time-division duplexing (TDD) enables independent uplink/downlink mode scheduling at each cell, based on the local traffic. However, this creates cross-interference among cells. Thus, joint power allocation and problem becomes mixed-integer non-convex turns out to be NP-hard. We propose a low-complexity decentralized solution, where are decoupled. First, is allocated in fashion, then mo...

In massive multiple-input multiple-output (MIMO) system, channel state information (CSI) is essential for the base station (BS) to achieve high performance gain. The CSI matrix needs be estimated and fed back from user equipment (UE) in frequency division duplexing (FDD) mode. Recently, deep learning widely used compression reduce feedback overhead. However, applying neural network brings extra...

A highly integrated K/Ka-band phased array with duplexing channels for transmitting and dual circularly polarized receiving is presented. To increase both the efficiency channel isolation, a novel architecture proposed to integrate horn antenna, polarizer, ortho-mode transducer (OMT), filters within very compact radiating aperture as element. Based on this element, one large-scale 416 elements ...

In this paper, a novel decentralised dynamic sub-carrier assignment (DSA) algorithm for orthogonal frequency division multiple access (OFDMA)-based adhoc and cellular networks operating in time division duplexing (TDD) mode is proposed to solve the hidden and exposed node problem in media access control (MAC). This method reduces the cochannel interference (CCI), and thus increases the overall ...

This paper addresses the issue of robust VDSL transmission in the presence of bridged taps in the local loop. The impact of bridged taps on transmission performance is described and evaluated for various frequency-division duplexing plans. It is shown that using only 4 bands will under several realistic circumstances result in very poor performance. The conclusion is that a robust duplexing pla...

In-band full-duplex (FD) communication is considered a potential candidate to be adopted by the fifth generation (5G) cellular networks. FD communication renders the entire spectrum simultaneously accessible by uplink and downlink, and hence, is optimistically promoted to double the transmission rate. While this is true for a single communication link, cross-mode interference (i.e., interferenc...

VIPR (vapor in-cloud profiling radar) is a tunable G-band radar designed for humidity and cloud remote sensing. uses all-solid-state components operates in frequency-modulated continuous-wave (FMCW) mode, offering transmit power of 200-300 mW. Its typical chirp bandwidth 10 MHz over center-frequency tuning span 167-174.8 GHz results nominal range resolution 15 m. The radar's measured noise figu...