Results 51 to 60 of about 780,508 (280)

Beyond contention: urban social movements and their multiple approaches to secure transformation

open access: yesEnvironment & Urbanization, 2018
This paper explores the strategies of social movement organizations working in towns and cities of the global South to secure justice for their members and address poverty and inequality.
D. Mitlin
semanticscholar   +1 more source

Enhancing Contention Resolution ALOHA Using Combining Techniques [PDF]

open access: yesIEEE Transactions on Communications, 2016
Recently, random access protocols have acquired a new wave of interest, not only from the satellite communication community, but also from researchers active in fields, such as Internet of Things and machine-to-machine. Asynchronous (slot- and frame-wise)
Federico Clazzer   +2 more
semanticscholar   +1 more source

OrMAC: A Hybrid MAC Protocol Using Orthogonal Codes for Channel Access in M2M Networks

open access: yesSensors, 2017
This paper proposes a hybrid medium access protocol named orthogonal coded medium access control (OrMAC), which extends the principle of distributed queuing collision avoidance protocol (DQCA) of wireless local area network (WLAN) to delay-sensitive ...
Ethungshan Shitiri   +2 more
doaj   +1 more source

A Q-learning-based distributed queuing Mac protocol for Internet-of-Things networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2023
Many previous studies showed that some nodes should be in a sleeping state while the traffic is high. These nodes can wake up periodically to transmit data while they have data to transmit.
Chien-Min Wu   +3 more
doaj   +1 more source

Hidden Terminal-Aware Contention Resolution with an Optimal Distribution [PDF]

open access: yes, 2011
Achieving low-power operation in wireless sensor networks with high data load or bursty traffic is challenging. The hidden terminal problem is aggravated with increased amounts of data in which traditional backoff-based contention resolution mechanisms ...
Ghadimi, Euhanna   +4 more
core   +2 more sources

Shifting spaces of contention

open access: yesEuropean Journal of Turkish Studies, 2018
The development of contentious collective action in Egypt has encouraged the emergence of new spaces of protest, but also the development of new strategies of opposition.
Suzan Gibril
doaj   +1 more source

A Scalable Hybrid MAC Protocol for Massive M2M Networks

open access: yes, 2013
In Machine to Machine (M2M) networks, a robust Medium Access Control (MAC) protocol is crucial to enable numerous machine-type devices to concurrently access the channel.
Cao, Xianghui   +3 more
core   +1 more source

Contention-based traffic priority MAC protocols in wireless body area networks: A thematic review

open access: yesEgyptian Informatics Journal, 2023
Wireless Body Area Networks (WBANs) healthcare application is a group of heterogeneous-natured Bio-Medical Sensor Nodes (BMSNs) used to sense and monitor a patient’s vital signs, in the long run, under natural physiological conditions, without affecting ...
Farhan Masud   +5 more
doaj  

Bounds on Contention Management in Radio Networks [PDF]

open access: yes, 2012
The local broadcast problem assumes that processes in a wireless network are provided messages, one by one, that must be delivered to their neighbors. In this paper, we prove tight bounds for this problem in two well-studied wireless network models: the ...
Ghaffari, Mohsen   +3 more
core   +4 more sources

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