Distributed Space-Time Systems
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Citation: EURASIP Journal on Advances in Signal Processing 2008 2008:891036
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Low-Complexity Distributed Multibase Transmission and Scheduling
This paper addresses the problem of base station coordination and cooperation in wireless networks with multiple base stations. We present a distributed approach to downlink multibase beamforming, which allows...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:741593 -
Diversity Analysis of Distributed Space-Time Codes in Relay Networks with Multiple Transmit/Receive Antennas
The idea of space-time coding devised for multiple-antenna systems is applied to the problem of communication over a wireless relay network, a strategy called distributed space-time coding, to achieve the coopera...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:254573 -
Code Design for Multihop Wireless Relay Networks
We consider a wireless relay network, where a transmitter node communicates with a receiver node with the help of relay nodes. Most coding strategies considered so far assume that the relay nodes are used for ...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:457307 -
Link-Adaptive Distributed Coding for Multisource Cooperation
Combining multisource cooperation and link-adaptive regenerative techniques, a novel protocol is developed capable of achieving diversity order up to the number of cooperating users and large coding gains. The...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:352796 -
NAF, OAF, or Noncooperation: Which Protocol to Choose?
The two main Amplify and Forward cooperative protocols are the orthogonal (OAF) and the nonorthogonal one (NAF). In this paper, we consider a given source, ...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:546470 -
On the Duality between MIMO Systems with Distributed Antennas and MIMO Systems with Colocated Antennas
Multiple-input multiple-output (MIMO) systems are known to offer huge advantages over single-antenna systems, both with regard to capacity and error performance. Usually, quite restrictive assumptions are made...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:360490 -
Distributed Space-Time Block Coded Transmission with Imperfect Channel Estimation: Achievable Rate and Power Allocation
This paper investigates the effects of channel estimation error at the receiver on the achievable rate of distributed space-time block coded transmission. We consider that multiple transmitters cooperate to se...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:471327 -
Cooperative Multibeamforming in Ad Hoc Networks
We treat the problem of cooperative multiple beamforming in wireless ad hoc networks. The basic scenario is that a cluster of source nodes cooperatively forms multiple data-carrying beams toward multiple desti...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:310247 -
Power-Efficient Relay Selection in Cooperative Networks Using Decentralized Distributed Space-Time Block Coding
Distributed space-time block coding (Dis-STBC) achieves diversity through cooperative transmission among geographically dispersed nodes. In this paper, we present a power-efficient relay-selection strategy for...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:362809 -
How to Solve the Problem of Bad Performance of Cooperative Protocols at Low SNR
We propose some new adaptive amplify-and-forward (AF) and decode-and-forward (DF) protocols using a selection. The new selection criterion is a function of the instantaneous capacities of all possible transmis...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:243153 -
Censored Distributed Space-Time Coding for Wireless Sensor Networks
We consider the application of distributed space-time coding in wireless sensor networks (WSNs). In particular, sensors use a common noncoherent distributed space-time block code (DSTBC) to forward their local...
Citation: EURASIP Journal on Advances in Signal Processing 2007 2008:127689