Application of Distributed Coordination Approach — A Case Example

2007 ◽  
pp. 127-148
Keyword(s):  
Distributed Coordination

An Efficient Distributed Single-hop Relay Supporting (EDSRS) MAC Protocol for Wireless Sensor Networks

2019 ◽  
Vol 9 (2) ◽  
pp. 153-164
Author(s):  
Arvind Kakria ◽  
Trilok Chand Aseri
Keyword(s):  
Energy Efficiency ◽  
Cooperative Communication ◽  
Mimo Systems ◽  
Mac Protocol ◽  
Multiple Input Multiple Output ◽  
Relay Node ◽  
Base Stations ◽  
Destination Node ◽  
Distributed Coordination ◽  
Hardware Complexity

Background & Objective: Wireless communication has immensely grown during the past few decades due to significant demand for mobile access. Although cost-effective as compared to their wired counterpart, maintaining good quality-of-service (QoS) in these networks has always remained a challenge. Multiple-input Multiple-output (MIMO) systems, which consists of multiple transmitter and receiver antennas, have been widely acknowledged for their QoS and transmit diversity. Though suited for cellular base stations, MIMO systems are not suited for small-sized wireless nodes due to their hardware complexity, cost, and increased power requirements. Cooperative communication that allows relays, i.e. mobile or fixed nodes in a communication network, to share their resources and forward other node’s data to the destination node has substituted the MIMO systems nowadays. To harness the full benefit of cooperative communication, appropriate relay node selection is very important. This paper presents an efficient single-hop distributed relay supporting medium access control (MAC) protocol (EDSRS) that works in the single-hop environment and improves the energy efficiency and the life of relay nodes without compensating the throughput of the network. Methods: The protocol has been simulated using NS2 simulator. The proposed protocol is compared with energy efficient cooperative MAC protocol (EECOMAC) and legacy distributed coordination function (DCF) on the basis of throughput, energy efficiency, transmission delay and an end to end delay with various payload sizes. Result and Conclusion: The result of the comparison indicates that the proposed protocol (EDSRS) outperforms the other two protocols.

scholarly journals Performance Analysis of Synchronous Multi-Radio Multi-Link MAC Protocols in IEEE 802.11be Extremely High Throughput WLANs

2020 ◽  
Vol 11 (1) ◽  
pp. 317
Author(s):  
Taewon Song ◽  
Taeyoon Kim
Keyword(s):  
Ieee 802.11 ◽  
Markov Chain Model ◽  
Careful Consideration ◽  
Mac Protocols ◽  
Media Access Control ◽  
Chain Model ◽  
Distributed Coordination ◽  
Media Access ◽  
Medium Access ◽  
Coordination Function

The representative media access control (MAC) mechanism of IEEE 802.11 is a distributed coordination function (DCF), which operates based on carrier-sense multiple access with collision avoidance (CSMA/CA) with binary exponential backoff. The next amendment of IEEE 802.11 being developed for future Wi-Fi by the task group-be is called IEEE 802.11be, where the multi-link operation is mainly discussed when it comes to MAC layer operation. The multi-link operation discussed in IEEE 802.11be allows multi-link devices to establish multiple links and operate them simultaneously. Since the medium access on a link may affect the other links, and the conventional MAC mechanism has just taken account of a single link, the DCF should be used after careful consideration for multi-link operation. In this paper, we summarize the DCFs being reviewed to support the multi-radio multi-link operation in IEEE 802.11be and analyze their performance using the Markov chain model. Throughout the extensive performance evaluation, we summarize each MAC protocol’s pros and cons and discuss essential findings of the candidate MAC protocols.

Distributed coordination on state-dependent fuzzy graphs

2021 ◽  
Author(s):  
Mojeed O. Oyedeji ◽  
Magdi S. Mahmoud ◽  
Yuanqing Xia
Keyword(s):  
Distributed Coordination ◽  
State Dependent ◽  
Fuzzy Graphs

Bilevel load-agent-based distributed coordination decision strategy for aggregators

Energy ◽  
2021 ◽  
pp. 122505
Author(s):  
Hongbin Wu ◽  
Jingjie Wang ◽  
Junhua Lu ◽  
Ming Ding ◽  
Lei Wang ◽  
...  
Keyword(s):  
Distributed Coordination ◽  
Decision Strategy ◽  
Agent Based

scholarly journals Distributed Coordination, Transportation & Localisation in Industry 4.0

2018 ◽  
Author(s):  
Ruben Van Parys ◽  
Maarten Verbandt ◽  
Marcus Kotze ◽  
Peter Coppens ◽  
Jan Swevers ◽  
...  
Keyword(s):  
Industry 4.0 ◽  
Distributed Coordination

Distributed coordination of dynamic rigid bodies

2007 ◽  
Author(s):  
Nima Moshtagh ◽  
Ali Jadbabaie ◽  
Kostas Daniilidis
Keyword(s):  
Rigid Bodies ◽  
Distributed Coordination
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