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GLOBECOM
2009
IEEE
14 years 2 months ago
Robust Cooperative Relaying in a Wireless LAN: Cross-Layer Design and Performance Analysis
—A key technology in cooperative communications is distributed space-time coding (DSTC) which achieves spatial diversity gain from multiple relays. A novel DSTC, called randomize...
Pei Liu, Chun Nie, Elza Erkip, Shivendra S. Panwar
WICON
2008
13 years 9 months ago
Security vulnerabilities in IEEE 802.22
Cognitive Radio (CR) is seen as one of the enabling technologies for realizing a new spectrum access paradigm, viz. Opportunistic Spectrum Sharing (OSS). IEEE 802.22 is the world&...
Kaigui Bian, Jung Min Park
TWC
2008
119views more  TWC 2008»
13 years 7 months ago
Flow-level performance of opportunistic OFDM-TDMA and OFDMA networks
Abstract--In this paper, the flow-level performance of opportunistic scheduling in orthogonal frequency division multiplexing (OFDM) networks is studied. The analysis accounts for ...
Lei Lei, Chuang Lin, Jun Cai, Xuemin Shen
GLOBECOM
2010
IEEE
13 years 5 months ago
Throughput and Energy Efficiency of Opportunistic Routing with Type-I HARQ in Linear Multihop Networks
Opportunistic routing is a well-known technique that exploits the broadcast nature of wireless transmissions and path diversity to form the route in an adaptive manner based on cur...
Davide Chiarotto, Osvaldo Simeone, Michele Zorzi
INFOCOM
2007
IEEE
14 years 2 months ago
Losing Opportunism: Evaluating Service Integration in an Opportunistic Wireless System
Abstract— In this paper we evaluate interactions among flowlevel performance metrics when integrating QoS and best effort flows in a wireless system using opportunistic schedul...
Hongseok Kim, Gustavo de Veciana