Grouping and partner selection in cooperative wireless networks
Aria Nosratinia,T.E. Hunter +1 more
TL;DR: This work points out a simple, static selection strategy that guarantees diversity n+1 for all transmissions, and considers centralized control strategies and study the additional gains that arise from a central control, under various amounts of information being available to the central controller.
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Abstract: Various results to date have demonstrated the advantages of one or several relay nodes assisting transmissions in a wireless network. In many practical scenarios, not all nodes in the network are simultaneously involved in every transmission; therefore, protocols are needed to form groups or subsets of nodes for the purposes of cooperation. We consider this problem in the context of regenerative nodes and non-altruistic cooperation (all nodes have data of their own to transmit). For a network-wide diversity advantage, the protocol must provide each transmitting node with enough "partners" that can decode its message with high-enough probability. Assuming that the nodes cannot communicate their control decisions (distributed scenario), and that each node chooses to help n other nodes, we point out a simple, static selection strategy that guarantees diversity n+1 for all transmissions. We then consider centralized control strategies and study the additional gains that arise from a central control, under various amounts of information being available to the central controller.
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Citations
•Dissertation
On the capacity and diversity of cooperative wireless communication networks
Qian. Li
- 01 Jan 2011
Cooperative wireless communications: Protocol design and performance analysis
Kanchan Vardhe
- 01 Jan 2009
TL;DR: Results indicate that significant cooperation gains could be obtained using a space-time coded cooperative diversity over the wide range of target rates and total number of users when using the proposed joint relay selection and power minimization algorithm.
Partner Selection Strategy in Cooperative Diversity Systems
Guomin Li,Guisheng Liao +1 more
- 14 Oct 2010
TL;DR: A novel strategy for partner selection in cooperative communication system is proposed based on the user distribution in the circular area and the simulation results show that the frame error rate of the method is superior to the random selection in the cooperative area.
Performance of Cooperative Diversity with Constellation Rearrangement in Multi-hop Wireless Networks
TL;DR: Simulation results show that the use of the cooperative diversity with a constellation rearrangement scheme improve the error probability performance in a power constrained, grouped multi-hop relaying network operating in a multi-path fading environment.
Cooperative communication with Delay and Energy proficient locality based routing protocol-DEPL
J AnjanaDevi,S Vaishnavi,N SankarRam +2 more
- 01 Jan 2016
TL;DR: The proposed DEPL- Delay and Energy efficient Locality based routing protocol with its random behaviour not only satisfies the above mentioned goals but also focuses on improving the overall network lifetime with minimal overhead.
References
•Book
Elements of information theory
Thomas M. Cover,Joy A. Thomas +1 more
- 01 Jan 1991
TL;DR: The author examines the role of entropy, inequality, and randomness in the design of codes and the construction of codes in the rapidly changing environment.
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
TL;DR: Using distributed antennas, this work develops and analyzes low-complexity cooperative diversity protocols that combat fading induced by multipath propagation in wireless networks and develops performance characterizations in terms of outage events and associated outage probabilities, which measure robustness of the transmissions to fading.
13.5K
User cooperation diversity. Part I. System description
TL;DR: Results show that, even though the interuser channel is noisy, cooperation leads not only to an increase in capacity for both users but also to a more robust system, where users' achievable rates are less susceptible to channel variations.
6.8K
Capacity theorems for the relay channel
Thomas M. Cover,Abbas El Gamal +1 more
TL;DR: In this article, the capacity of the Gaussian relay channel was investigated, and a lower bound of the capacity was established for the general relay channel, where the dependence of the received symbols upon the inputs is given by p(y,y) to both x and y. In particular, the authors proved that if y is a degraded form of y, then C \: = \: \max \!p(x,y,x,2})} \min \,{I(X,y), I(X,Y,Y,X,Y
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
J.N. Laneman,Gregory W. Wornell +1 more
TL;DR: This work develops and analyzes space-time coded cooperative diversity protocols for combating multipath fading across multiple protocol layers in a wireless network and demonstrates that these protocols achieve full spatial diversity in the number of cooperating terminals, not just theNumber of decoding relays, and can be used effectively for higher spectral efficiencies than repetition-based schemes.