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» Opportunistic Relaying in Wireless Networks
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WINET
2008
86views more  WINET 2008»
14 years 9 months ago
Relay sensor placement in wireless sensor networks
This paper addresses the following relay sensor placement problem: given the set of duty sensors in the plane and the upper bound of the transmission range, compute the minimum nu...
Xiuzhen Cheng, Ding-Zhu Du, Lusheng Wang, Baogang ...
JSAC
2011
215views more  JSAC 2011»
14 years 4 months ago
Opportunistic Spectrum Sharing Schemes for CDMA-Based Uplink MAC in Cognitive Radio Networks
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
Xi Zhang, Hang Su
DEXAW
2004
IEEE
90views Database» more  DEXAW 2004»
15 years 1 months ago
Opportunistic Dissemination of Spatio-Temporal Resource Information in Mobile Peer to Peer Networks
In this paper we examine the dissemination of availability reports about resources in mobile peer-topeer networks, where vehicles, pedestrian or sensors communicate with each othe...
Ouri Wolfson, Bo Xu
WCNC
2010
IEEE
14 years 8 months ago
Characterization of the Secrecy Region of a Single Relay Cooperative System
Abstract—Security is an important aspect for the future wireless networks. Since the number of network nodes increases constantly, and, in addition, the networks are decentralize...
Ninoslav Marina, Are Hjørungnes
TCOM
2010
162views more  TCOM 2010»
14 years 4 months ago
Power Allocation in MMSE Relaying over Frequency-Selective Rayleigh Fading Channels
Abstract--This paper develops an amplify-and-forward relaying scheme for multiuser wireless cooperative networks under frequency-selective block-fading. Single-carrier frequency di...
Tung T. Pham, Ha H. Nguyen, Hoang Duong Tuan