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TON
2010
197views more  TON 2010»
13 years 3 months ago
Constrained relay node placement in wireless sensor networks: formulation and approximations
—One approach to prolong the lifetime of a wireless sensor network (WSN) is to deploy some relay nodes to communicate with the sensor nodes, other relay nodes, and the base stati...
Satyajayant Misra, Seung Don Hong, Guoliang Xue, J...
GLOBECOM
2008
IEEE
13 years 6 months ago
Uplink Ergodic Mutual Information of OFDMA-Based Two-Hop Cooperative Relay Networks with Imperfect CSI
— This paper analyzes the ergodic mutual information of OFDMA cooperative relay networks when the Channel State Information (CSI) imperfection is considered at resource allocatio...
Mohamad Khattar Awad, Xuemin Shen, Bashar Zogheib
SECON
2010
IEEE
13 years 3 months ago
Two-Tiered Constrained Relay Node Placement in Wireless Sensor Networks: Efficient Approximations
In a wireless sensor network, short range multihop transmissions are preferred to prolong the network lifetime due to super-linear nature of energy consumption with communication d...
Dejun Yang, Satyajayant Misra, Xi Fang, Guoliang X...
CORR
2007
Springer
138views Education» more  CORR 2007»
13 years 5 months ago
Capacity of Linear Two-hop Mesh Networks with Rate Splitting, Decode-and-forward Relaying and Cooperation
— A linear mesh network is considered in which a single user per cell communicates to a local base station via a dedicated relay (two-hop communication). Exploiting the possibly ...
Osvaldo Simeone, Oren Somekh, Yeheskel Bar-Ness, H...
ICC
2009
IEEE
157views Communications» more  ICC 2009»
14 years 6 days ago
Optimal Relay Assignment and Power Allocation in Selection Based Cooperative Cellular Networks
—We consider a system with a single base station communicating with multiple users over orthogonal channels while being assisted by multiple relays. Several recent works have sug...
Sachin Kadloor, Raviraj Adve