Diversity Combining for Cooperative Communications

Cooperative Communications for Improved Wireless Network Transmission ◽

10.4018/978-1-60566-665-5.ch011 ◽

2010 ◽

pp. 301-320

Author(s):

Diomidis S. Michalopoulos ◽

George K. Karagiannidis

Keyword(s):

Performance Analysis ◽

Antenna Arrays ◽

Cooperative Communications ◽

Cooperative Relaying ◽

Diversity Combining ◽

Practical Applications ◽

Relaying Protocols ◽

Diversity Receiver ◽

Combining Methods ◽

Switch And Stay Combining

A major advantage of cooperative communications is the potential for forming distributed antenna arrays, that is arrays whose elements are not collocated, but carried by independent relaying terminals. This allows for a study and design of cooperative communications under a novel perspective, where the inherent end-to-end paths between the source and destination terminal constitute the multiple branches of a virtual, distributed diversity receiver. As a result, the well-known combining methods used in conventional diversity receivers can be implemented in a distributed fashion, resulting in novel relaying protocols and, generally, in new ways for exploiting the resources available in cooperative relaying setups. This chapter provides an overview of this distributed diversity concept, as well as a performance analysis of the corresponding distributed diversity schemes, with particular emphasis on the analysis of distributed switch-and-stay combining. Further insights regarding the potential of implementing the distributed diversity concept in practical applications are obtained.

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Autonomic Cooperative Communications

Advances in Computer and Electrical Engineering - Advanced Methodologies and Technologies in Network Architecture, Mobile Computing, and Data Analytics ◽

10.4018/978-1-5225-7598-6.ch086 ◽

2019 ◽

pp. 1173-1182

Author(s):

Michal Wodczak

Keyword(s):

Signal Processing ◽

Antenna Arrays ◽

Network Architecture ◽

Cooperative Communications ◽

Cooperative Relaying ◽

Cooperative Groups ◽

Relay Nodes ◽

Link Layer ◽

Simultaneous Formation

When perceived from the perspective of physical layer upwards, as it capitalizes on signal processing in both the spatial and temporal domains, the concept of link layer inherent distributed cooperative relaying based on virtual antenna arrays aims to improve the reliability of wireless communications through the exploitation of radio diversity provided by relay nodes. Given such a context, the inclusion of network layer routines of relevance may only further facilitate the orchestration of networked devices in terms of arranging for their pre-selection into cooperative groups. However, as the system becomes more and more complex, it appears of necessity to incorporate overlay elements of self-management-driven generic autonomic network architecture to allow simultaneous formation of numerous cooperative and non-cooperative set-ups. This is where the substantial role of autonomic system design comes into the global picture as the umbrella under which the concept of autonomic cooperative communications may be realized.

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Autonomic Cooperative Communications

Encyclopedia of Information Science and Technology, Fourth Edition ◽

10.4018/978-1-5225-2255-3.ch564 ◽

2018 ◽

pp. 6499-6506

Author(s):

Michal Wodczak

Keyword(s):

Signal Processing ◽

Antenna Arrays ◽

Network Architecture ◽

Cooperative Communications ◽

Cooperative Relaying ◽

Cooperative Groups ◽

Relay Nodes ◽

Link Layer ◽

Simultaneous Formation

When perceived from the perspective of Physical Layer upwards, as it capitalises on signal processing in both the spatial and temporal domains, the concept of Link Layer inherent Distributed Cooperative Relaying based on Virtual Antenna Arrays aims to improve the reliability of wireless communications through the exploitation of radio diversity provided by Relay Nodes. Given such a context, the inclusion of Network Layer routines of relevance may only further facilitate the orchestration of networked devices in terms of arranging for their pre-selection into cooperative groups. However, as the system becomes more and more complex, it appears of necessity to incorporate overlay elements of self-management driven Generic Autonomic Network Architecture to allow simultaneous formation of numerous cooperative and non-cooperative set-ups. This is where the substantial role of autonomic system design comes into the global picture as the umbrella under which the concept of Autonomic Cooperative Communications may be realised.

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