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Two-way relaying promises considerable improvements on spectral efficiency in wireless relay networks. While most existing works focus on physical layer approaches to exploit its capacity gain, the benefits of two-way relaying on upper…

信息论 · 计算机科学 2012-05-16 Cen lin , Yuan Liu , Meixia Tao

In this paper, we consider general two-way relay networks (TWRNs) with two source and N relay nodes. A distributed differential space time coding with analog network coding (DDSTC-ANC) scheme is proposed. A simple blind estimation and a…

信息论 · 计算机科学 2013-12-17 Qiang Huo , Lingyang Song , Yonghui Li , Bingli Jiao

In time-critical wireless sensor network (WSN) applications, a high degree of reliability is commonly required. A dynamical jumping real-time fault-tolerant routing protocol (DMRF) is proposed in this paper. Each node utilizes the remaining…

网络与互联网体系结构 · 计算机科学 2010-04-15 Guowei Wu , Chi Lin , Feng Xia , Lin Yao , He Zhang , Bing Liu

Conventional delay-Doppler (DD) communication and sensing systems require transmitting pilot frames at every channel coherence time interval in order to keep track of channel variations at the cost of spectral efficiency. In this paper, we…

信号处理 · 电气工程与系统科学 2026-04-09 Nishant Mehrotra , Sandesh Rao Mattu , Robert Calderbank

Modern applications such as voice recognition rely on the ability to compare signals to pre-recorded ones to classify them. However, this comparison typically needs to ignore differences due to signal noise, temporal offset, signal…

机器学习 · 计算机科学 2022-06-16 Arvind Seshan

Precise localization is one key element of the Internet of Things (IoT). Especially concepts for position estimation when Global Navigation Satellite Systems (GNSS) are unavailable have moved into the focus. One crucial component for…

分布式、并行与集群计算 · 计算机科学 2023-06-09 Thomas Maul , Sebastian Klob , Joerg Robert

In this paper, we investigate the problem of dual-rate consensus under transmission delays, where the control updates happen at a faster rate than the measurements being received. We assume that the measurements are delayed by a fixed delay…

系统与控制 · 电气工程与系统科学 2025-06-04 David Umsonst , Mina Ferizbegovic

It has been alleged in several papers that the so called delayed continuous-time random walks (DCTRWs) provide a model for the one-dimensional telegraph equation at microscopic level. This conclusion, being widespread now, is strange, since…

统计力学 · 物理学 2012-03-01 Sergey A. Rukolaine , Alexander M. Samsonov

Initial access in millimeter-wave (mmW) wireless is critical toward successful realization of the fifth-generation (5G) wireless networks and beyond. Limited bandwidth in existing standards and use of phase-shifters in analog/hybrid…

This paper addresses learning end-to-end models for time series data that include a temporal alignment step via dynamic time warping (DTW). Existing approaches to differentiable DTW either differentiate through a fixed warping path or apply…

机器学习 · 计算机科学 2023-03-21 Ming Xu , Sourav Garg , Michael Milford , Stephen Gould

This paper proposes a Traffic-Differentiated Two-Hop Routing protocol for Quality of Service (QoS) in Wireless Sensor Networks (WSNs). It targets WSN applications having different types of data traffic with several priorities. The protocol…

网络与互联网体系结构 · 计算机科学 2014-03-03 T Shiva Prakash , K B Raja , K R Venugopal , S S Iyengar , L M Patnaik

In this paper, we investigate the impact of mistiming on the performance of Rake receivers in direct-sequence ultra-wideband (DS-UWB) systems from the perspective of the achievable information rate. A generalized expression for the…

信息论 · 计算机科学 2010-12-22 Chunhua Geng , Yukui Pei , Jiaqi Zhang , Ning Ge

Range profiling refers to the measurement of target response along the radar slant range. It plays an important role in automatic target recognition. In this paper, we consider the design of transmit waveform to improve the range profiling…

信号处理 · 电气工程与系统科学 2021-03-19 Bo Tang , Jun Liu , Hai Wang , Yihua Hu

Accurate Direction of Arrival (DoA) estimation is critical for applications in robotics and communication, but high costs and complexity of coherent multi-channel receivers hinder accessibility. This work proposes a cost-effective DoA…

信号处理 · 电气工程与系统科学 2025-02-13 Lennart Werner , Markus Gardill , Marco Hutter

Dual-function radar communication (DFRC) systems incorporate both radar and communication functions by sharing spectrum, hardware and radio frequency (RF) chains. In this work, we consider a conceptual DFRC scheduler model which shares RF…

信号处理 · 电气工程与系统科学 2025-11-19 D. R. Raghavendra , V. V. Reddy , A. Mishra

The problem on the Cramer-Rao Lower Bounds (CRLBs) for the joint time delay and Doppler stretch estimation of an extended target is considered in this paper. The integral representations of the CRLBs for both the time delay and the Doppler…

信号处理 · 电气工程与系统科学 2018-08-30 Tong Zhao , Tianyao Huang

In time-varying fading channels, channel coefficients are estimated using pilot symbols that are transmitted every coherence interval. For channels with high Doppler spread, the rapid channel variations over time will require considerable…

信息论 · 计算机科学 2022-03-24 Sandesh Rao Mattu , Lakshmi Narasimhan T , A. Chockalingam

Target detection and recognition is a very challenging task in a wireless environment where a multitude of objects are located, whether to effectively determine their positions or to identify them and predict their moves. In this work, we…

信号处理 · 电气工程与系统科学 2023-05-10 Mamady Delamou , Ahmad Bazzi , Marwa Chafii , El Mehdi Amhoud

Throughput and per-packet delay can present strong trade-offs that are important in the cases of delay sensitive applications.We investigate such trade-offs using a random linear network coding scheme for one or more receivers in single hop…

网络与互联网体系结构 · 计算机科学 2012-02-06 Weifei Zeng , Chris T. K. Ng , Muriel Medard

We consider the problem of carrier frequency offset (CFO) estimation for a two-way relaying system based on the amplify-and-forward (AF) protocol. Our contributions are in designing an optimal preamble, and the corresponding estimator, to…

信息论 · 计算机科学 2012-08-17 Chin Keong Ho , Patrick Ho Wang Fung , Sumei Sun