1.8k citations · 4.7k across the 68 of their papers we have counts for
6 papers · 2 filters
Non-line-of-sight Node Localization based on Semi-Definite Programming in Wireless Sensor Networks
Hongyang Chen, Kenneth W. K. Lui, Zizhuo Wang +2
An unknown-position sensor can be localized if there are three or more anchors making time-of-arrival (TOA) measurements of a signal from it. However, the location errors can be ve…
Time Delay Estimation in Cognitive Radio Systems
Fatih Kocak, Hasari Celebi, Sinan Gezici +3
In cognitive radio systems, secondary users can utilize multiple dispersed bands that are not used by primary users. In this paper, time delay estimation of signals that occupy mul…
Fading Cognitive Multiple-Access Channels With Confidential Messages
Ruoheng Liu, Yingbin Liang, H. Vincent Poor
The fading cognitive multiple-access channel with confidential messages (CMAC-CM) is investigated, in which two users attempt to transmit common information to a destination and us…
Interference Assisted Secret Communication
Xiaojun Tang, Ruoheng Liu, Predrag Spasojevic +1
Wireless communication is susceptible to eavesdropping attacks because of its broadcast nature. This paper illustrates how interference can be used to counter eavesdropping and ass…
Capacity Regions and Sum-Rate Capacities of Vector Gaussian Interference Channels
Xiaohu Shang, Biao Chen, Gerhard Kramer +1
The capacity regions of vector, or multiple-input multiple-output, Gaussian interference channels are established for very strong interference and aligned strong interference. Furt…
Convergence and Tradeoff of Utility-Optimal CSMA
Jiaping Liu, Yung Yi, Alexandre Proutiere +2
It has been recently suggested that in wireless networks, CSMA-based distributed MAC algorithms could achieve optimal utility without any message passing. We present the first proo…