MIMO Configurations for Relay Channels: Theory and Practice

Fan, Yalin; Thompson, John

doi:10.1109/twc.2007.360379

Cited by 391 publications

(262 citation statements)

References 32 publications

Supporting

Mentioning

261

Contrasting

Order By: Relevance

“…To reach the trade off between gain brought by the cooperation and the overhead introduced, Fan et al [7] and Moh et al [12] show that the best cooperation happens in the case of a few nodes cooperation instead of a multiple-nodes cooperation pattern. Based on this observation we have developed an algorithm that enables the node that want to send a packet to pre-define a small set of relay nodes that will help to forward packets to the destination.…”

Section: A Automatic Forwarder Selectionmentioning

confidence: 99%

Cooperative communication for Wireless Sensors Network : A Mac protocol solution

Mainaud¹,

Gauthier²,

Afifi³

2008

2008 1st IFIP Wireless Days

View full text Add to dashboard Cite

Abstract-This article proposes a new Mac layer scheme (WSC-MAC) for Wireless Sensor Network (WSN) improving the overall the network reliability by using cooperative communication. We focus our work on a way to define a relay node among the neighborhood of a node, efficiently and with only few signaling messages. We developed a solution based on an automatic forwarder selection and a link state evaluation in order to define the relay node. This automatic selection uses a group identifier uniformly spread in the network and ensures that only few nodes at the time will be chosen as relay. As the sensor nodes switch from active mode to sleep mode, we based our solution on the Long Preamble Emulation (LPE) Mac layer Algorithm which emulates the asynchronous MAC protocol proposed in [13]. Our Simulations results show that WSC-MAC increases the overall reliability of the sensor network and adjusts to large variety of node density.

show abstract

Section: A Automatic Forwarder Selectionmentioning

confidence: 99%

Cooperative communication for Wireless Sensors Network : A Mac protocol solution

Mainaud¹,

Gauthier²,

Afifi³

2008

2008 1st IFIP Wireless Days

View full text Add to dashboard Cite

show abstract

“…In the literature, the combination of multiple-input multiple-output (MIMO) techniques with relaying has been invoked to further enhance the communication performance [11], [12]. While most work has focused on MIMO half-duplex relaying, recent work has also considered MIMO full-duplex relaying.…”

Section: Introductionmentioning

confidence: 99%

Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Suraweera

Krikidis

Zheng

et al. 2014

IEEE Trans. Wireless Commun.

252

203

View full text Add to dashboard Cite

In this paper, we deal with the deployment of full-duplex relaying in amplify-and-forward (AF) cooperative networks with multiple-antenna terminals. In contrast to previous studies, which focus on the spatial mitigation of the loopback interference (LI) at the relay node, a joint precoding/decoding design that maximizes the end-to-end (e2e) performance is investigated. The proposed precoding incorporates rank-1 zero-forcing (ZF) LI suppression at the relay node and is derived in closed-form by solving appropriate optimization problems. In order to further reduce system complexity, the antenna selection (AS) problem for full-duplex AF cooperative systems is discussed. We investigate different AS schemes to select a single transmit antenna at both the source and the relay, as well as a single receive antenna at both the relay and the destination. To facilitate comparison, exact outage probability expressions and asymptotic approximations of the proposed AS schemes are provided. In order to overcome zerodiversity effects associated with the AS operation, a simple power allocation scheme at the relay node is also investigated and its optimal value is analytically derived. Numerical and simulation results show that the joint ZF-based precoding significantly improves e2e performance, while AS schemes are efficient solutions for scenarios with strict computational constraints. Index TermsMIMO relay networks, full-duplex relaying, precoding, antenna selection, outage probability. H. A. Suraweera is with the

show abstract

“…This led to great research efforts to improve the overall performance of wireless networks from both industry and academia. Multipleinput multiple-output (MIMO) relay channel has been identified to be one of the promising solutions, as it enhances channel capacity, network reliability and extends the network coverage [1].…”

Section: Introductionmentioning

confidence: 99%

“…For the MIMO relay systems [1]- [4] mentioned above, the instantaneous channel state information (CSI) knowledge of both the source-relay and relay-destination links is required at the destination node in order to retrieve the signals transmitted from the source node. However, in a real wireless relay system, the instantaneous CSI is unknown, and thus, estimation of channel matrices is required at the destination node.…”

Section: Introductionmentioning

confidence: 99%

Robust channel estimation algorithm for dual-hop MIMO relay channels

Chiong

Rong

Xiang

2012

2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications - (PIMRC)

View full text Add to dashboard Cite

Abstract-In conventional two-phase channel estimation algorithms for dual-hop multiple-input multiple-output (MIMO) relay systems, the relay-destination channel estimated in the first phase is used for the source-relay channel estimation in the second phase. For these algorithms, the mismatch between the estimated and the true relay-destination channel affects the accuracy of the source-relay channel estimation. In this paper, we investigate the impact of such channel state information (CSI) mismatch on the performance of the two-phase channel estimation algorithm. By explicitly taking into account the CSI mismatch, we develop a robust algorithm to estimate the sourcerelay channel. Numerical examples demonstrate the improved performance of the proposed algorithm.

show abstract

MIMO Configurations for Relay Channels: Theory and Practice

Cited by 391 publications

References 32 publications

Cooperative communication for Wireless Sensors Network : A Mac protocol solution

Cooperative communication for Wireless Sensors Network : A Mac protocol solution

Low-Complexity End-to-End Performance Optimization in MIMO Full-Duplex Relay Systems

Robust channel estimation algorithm for dual-hop MIMO relay channels

Contact Info

Product

Resources

About