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Direct Link Aware Cooperative Relaying

Carlos Figuera, Eduardo Morgado, Antonio J. Caamano, Alfonso Cano
2006 2006 3rd International Symposium on Wireless Communication Systems  
We derive a strategy named Direct Link-Aware Relaying (DLA), which uses the source-destination link status as a condition to forward or not the signal at the relay.  ...  Three main strategies have been described which follows this key idea of cooperative relaying.  ...  DIRECT LINK AWARE RELAYING In non-selective forwarding strategies, the relay retransmits all the symbols it receives, even when they are not correct, and hence it wastes power.  ... 
doi:10.1109/iswcs.2006.4362306 fatcat:74mx4luytjc6fb6rcce2ykm22y

A Cooperation-Aware Routing Scheme for Fast Varying Fading Wireless Channels

D.O. de Cunha, O.M.B. Duarte, G. Pujolle
2008 IEEE Communications Letters  
In this letter, we propose a cooperation-aware routing scheme based on long-term statistics of cooperative links.  ...  The proposed scheme fully exploits cooperation on fading scenarios and proves to be more efficient than greedy cooperation-aware routing based on instantaneous link conditions.  ...  Whereas Link A is a non-cooperative link with no relay available, links B and C use cooperation and have, respectively, 1 and 2 available relays.  ... 
doi:10.1109/lcomm.2008.080882 fatcat:gprtmhxyungsjhtje2agpod3aq

Aerial-terrestrial communications: terrestrial cooperation and energy-efficient transmissions to aerial base stations

Sithamparanathan Kandeepan, Karina Gomez, Laurent Reynaud, Tinku Rasheed
2014 IEEE Transactions on Aerospace and Electronic Systems  
We propose and evaluate a real-time adaptive cooperative transmission strategy for dynamic selection between direct and cooperative links based on the channel conditions for improved energy efficiency.  ...  The corresponding delay in having cooperative (relay-based) communications with relay selection is also addressed.  ...  between the direct link and all the relay links.  ... 
doi:10.1109/taes.2014.130012 fatcat:sz22p7cyezfhzpoansl4gkim6u

Performance Characterization of Machine-to-Machine Networks With Energy Harvesting and Social-Aware Relays

Sai Huang, Zhiqing Wei, Xin Yuan, Zhiyong Feng, Ping Zhang
2017 IEEE Access  
Moreover, for the energy harvesting and social-aware relay that assists the cooperative transmission protocol, we propose two different relay selection strategies, that is, social-aware random relay selection  ...  and social-aware best relay selection.  ...  WITH SRRS For the cooperative transmission, the outage of SRRS occurs if neither the direct link nor the relaying transmission can support the target SINR.  ... 
doi:10.1109/access.2017.2657551 fatcat:c625mrwgifhhpnqdlkhssxl2oy

Multi-Hop-Aware Cooperative Relaying

Helmut Adam, Christian Bettstetter, Sidi Mohammed Senouci
2009 VTC Spring 2009 - IEEE 69th Vehicular Technology Conference  
In this paper we present a complete system design of Multi-Hop-Aware Cooperative Relaying and investigate different relay selection policies for it.  ...  We address the drawbacks of Cooperative Relaying regarding its spectral inefficiency and its channel over reservation compared to direct transmissions.  ...  Whenever the direct link fails, the cooperative transmission phase is entered.  ... 
doi:10.1109/vetecs.2009.5073700 dblp:conf/vtc/AdamBS09 fatcat:5blfbvukajg6rlon5cosujyyca

Interference-Aware Cooperative Routing in Wireless Networks

Ido Ben-Tsion, Itzik Kitroser, Yehuda Ben-Shimol
2009 Proceedings of the 6th International ICST Conference on Broadband Communications, Networks, and Systems  
We study interference-aware, many-to-many cooperative routing algorithms in wireless networks.  ...  We show that cooperation has little if any performance gain over simple relaying in terms of effective rate when inter-frame interference is not taken into consideration.  ...  Note that a direct link to node 3 does not exist while a cooperative link does.  ... 
doi:10.4108/icst.broadnets2009.7227 dblp:conf/broadnets/Ben-TsionKB09 fatcat:ukit2fa7rzdtbooujjyaahrhiq

CORELA: A cooperative relaying enhanced link adaptation algorithm for IEEE 802.11 WLANs

Li Li, Dritan Kaleshi, Zhong Fan
2011 2011 8th International Symposium on Wireless Communication Systems  
In this paper we propose a practical cooperative relaying link adaptation medium access protocol that considers the historical link quality to enable the relay terminal to adjust its transmission relaying  ...  One of the key challenges for cooperative relaying multi-rate wireless networks is the integration and interaction of relaying with link adaptation algorithms, in particular under incomplete and/or imprecise  ...  Before changing the current data rate for relaying, the relay consults recorded past performance of the both direct and relay links. IV.  ... 
doi:10.1109/iswcs.2011.6125388 dblp:conf/iswcs/LiKF11 fatcat:yglpvcsmbrepxdcgqinixgq2wa

Cooperative Routing in Multi-Radio Multi-Hop Wireless Network [chapter]

Kun Xie, Shiming He, Xin Wang, Dafang Zhang, Keqin Li
2017 Ad Hoc Networks  
We propose two important metrics, contention-aware channel utilization routing metric (CACU) to capture the interference cost from both direct and cooperative transmission, and traffic aware channel condition  ...  Based on these metrics, we propose three algorithms for interference-aware cooperative routing, local channel adjustment, and local path and relay adaptation, respectively, to ensure high-performance communications  ...  link l R 4 R 5 C h 1 adopts the direct transmission mode with both R 4 and R 5 being MR relays.  ... 
doi:10.5772/66414 fatcat:n2r4b23xtncahpf4pr5sfuqo2a

QoS-aware distributed adaptive cooperative routing in wireless sensor networks

Md. Abdur Razzaque, Mohammad Helal Uddin Ahmed, Choong Seon Hong, Sungwon Lee
2014 Ad hoc networks  
The decision of selecting a transmission mode (i.e., direct or relayed transmission) at each hop is taken adaptively so that the reliability is maximized.  ...  relay with the least overhead.  ...  del for a certain packet nor the direct link could meet up the requirement.  ... 
doi:10.1016/j.adhoc.2014.02.002 fatcat:qvrny2c7efaxpbqydo7jmxxbwe

Social-Aware Relay Selection for Cooperative Multicast Device-to-Device Communications

Francesco Chiti, Romano Fantacci, Laura Pierucci
2017 Future Internet  
In addition, cooperative multicast relaying can improve data rates as a result of the shorter distance from multicast devices with respect to the direct transmission, for which the worst propagation channel  ...  Moreover, in our case, the source selects the device to act as the relay among different users of the multicast group by taking into account both the propagation link conditions and the relay social-trust  ...  Again, the direct link is only shown for reference in this figure.  ... 
doi:10.3390/fi9040092 fatcat:wlw5alqic5arlcwgxzunlwaapy

Cooperative Routing With Relay Assignment in Multiradio Multihop Wireless Networks

Kun Xie, Xin Wang, Jigang Wen, Jiannong Cao
2016 IEEE/ACM Transactions on Networking  
Our distributed algorithm includes two sub-algorithms: a cooperative route selection subalgorithm and a fairness-aware route adjustment sub-algorithm.  ...  To demonstrate the benefits of CC in multi-radio multi-hop wireless network, this paper studies a joint problem of multi-radio cooperative routing and relay assignment to maximize the minimum rate among  ...  transmission or cooperative transmission, thus a session's outgoing link and incoming link can be either a direct link or a virtual cooperative link.  ... 
doi:10.1109/tnet.2015.2397035 fatcat:yimj6anqujep5f25etv4hhbdyq

Interference-Aware Cooperative Communication in Multi-Radio Multi-Channel Wireless Networks

Kun Xie, Xin Wang, Xueli Liu, Jigang Wen, Jiannong Cao
2016 IEEE transactions on computers  
We propose two important metrics, contention-aware channel utilization routing metric (CACU) to capture the interference cost from both direct transmission and cooperative transmission, and traffic aware  ...  Based on these metrics, we propose three algorithms for interference-aware cooperative routing, local channel adjustment, and local path and relay adaptation respectively to ensure high performance communications  ...  We consider cooperative link l In cooperative wireless networks, there are two transmission modes, direction transmission between two nodes or cooperative transmission with the help of a relay node between  ... 
doi:10.1109/tc.2015.2448089 fatcat:ztha4cizabhcvgoajcpyodfyiu

Wireless Cooperative Relaying Based On Opportunistic Relay Selection

Tauseef Jamal, Paulo Mendes, Andre Zuquete
2012 Zenodo  
In face of multi-path propagation and low data rate stations, cooperative relaying promises gains in performance and reliability.  ...  In this article we describe a framework, called RelaySpot [1], to implement cooperative wireless solutions in large mobile networks, based upon opportunistic relay selection methods.  ...  In order to achieve performance improvement the direct link must be replaced by relays with both source-relay and relaydestination links that present a data rate higher than the direct link, and one of  ... 
doi:10.5281/zenodo.35631 fatcat:zd75r6pghvhkdku2y6t6cbulkq

Self-Supported Cooperative Networking for Emergency Services in Multi-Hop Wireless Networks

Biao Han, Jie Li, Jinshu Su, Jiannong Cao
2012 IEEE Journal on Selected Areas in Communications  
We formulate the multi-hop cooperative flow routing and relay node selection process as an optimization problem.  ...  We focus on promoting energy-efficient and congestion-aware cooperative networking for emergency services based on the idea of Do-It-Yourself.  ...  As we choose one cooperative relay for each transmitter-receiver pair, the link cost changes after each relay selection process.  ... 
doi:10.1109/jsac.2012.120225 fatcat:gvfg4dldlvam3dpccuabub2pem

Adaptive Energy Efficient Communications for Hybrid Aerial-Terrestrial Systems [article]

Laurent Reynaud, Sithamparanathan Kandeepan, Karina Gomez, Tinku Rasheed
2013 arXiv   pre-print
In this paper, we propose and evaluate a real-time adaptive transmission strategy for dynamic selection of direct and cooperative links based on the channel conditions for improved energy efficiency.  ...  We show that the cooperation between mobile terrestrial terminals on the ground could improve the energy efficiency in the uplink depending on the temporal behavior of the terrestrial and the aerial uplink  ...  when β > 1 the direct link becomes more energy efficient than the relay link, when β < 1 the relay link becomes more efficient than the direct link, and when β = 1 both relay and direct links become equally  ... 
arXiv:1208.2825v2 fatcat:q7rqm6cuwfgmdj64jvnufkkv4y
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