A Singlehop Collaborative Feedback Primitive for Wireless Sensor Networks

Demirbaş, Murat; Soysal, Onur; Hussain, Muzammil

doi:10.1109/infocom.2008.270

Cited by 23 publications

(14 citation statements)

References 16 publications

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“…On the CC2420 radio, this is done using the Clear Channel Assessment (CCA) signal. It is calculated by the radio chip and does not involve the MCU in collision detection [13].…”

Section: B Receiver-side Collision Detectionmentioning

confidence: 99%

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Bin-MAC: A Hybrid MAC for Ultra-compact Wireless Sensor Nodes

Salmani

Chou

2012

2012 IEEE 8th International Conference on Distributed Computing in Sensor Systems

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This paper presents a light-weight hybrid protocol called Bin-MAC (Binary Medium Access Control) for highly resource-constrained wireless sensor nodes. In addition to simplicity and low footprint, a distinguishing feature of Bin-MAC is its deterministic contention resolution mechanism, which enables it to achieve bounded latency on data transmissions. As a result, Bin-MAC can be applied to delay-sensitive applications with real-time constraints, a feature not provide by most of the existing hybrid protocols. Another feature of the proposed protocol is that it requires carrier-sensing hardware only on the base station side, and sensor nodes do not have to possess such capability. Bin-MAC does not require clock synchronization, and thus clock drifts have no impact on its performance. Experimental results show Bin-MAC to be scalable and able to handle large network sizes without noticeable performance degradation.

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“…On the CC2420 radio, this is done using the Clear Channel Assessment (CCA) signal. It is calculated by the radio chip and does not involve the MCU in collision detection [13].…”

Section: B Receiver-side Collision Detectionmentioning

confidence: 99%

“…To enable receiver-side collision detection, nodes broadcast the data message [13]. When the BS detects a collision, it infers that two or more nodes in the range specified in the pull message have transmitted simultaneously.…”

Section: B Binary Tree Collision Resolutionmentioning

confidence: 99%

Bin-MAC: A Hybrid MAC for Ultra-compact Wireless Sensor Nodes

Salmani

Chou

2012

2012 IEEE 8th International Conference on Distributed Computing in Sensor Systems

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“…Initially, within the first time slot T s (1), CR1 keeps silent in T w due to empty channel, then communicates with CR BS in T , and at last senses for the PU in T d . Meanwhile, CR2 detects the energy level for PU in T w only or in both T w and T d (if no detection in T w ) within (1), but deactivates in T to save power. Since no PU is transmitting, the detected energy level by CR1 and CR2 within T s (1) is lower than a pre-defined threshold , if noise distortion is negligible.…”

Section: B Two-user Network Examplesmentioning

confidence: 99%

“…The basic idea is to allocate two specific short time periods for CR users to sense the PU with energy detector in forms of RSSI (Received Signal Strength Indicator), CCA (Clear Channel Assessment) [1] and et al, which is accessible for most of the RF chips. CR users who detect the PU launch a warning signal to facilitate neighbors' detection.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Cooperative Spectrum Sensing in Cognitive Radio

Wang

Tewfik

2009

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference

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This paper presents a new cooperative spectrum sensing scheme, which allocates two separate short periods for sensing and cooperation to achieve high capability of detecting the Primary User (PU) with low interference. A mathematical model is built to derive a closed formulation of the detection probability of the CR users for guiding a real system design. Extensive simulations results demonstrate that the proposed method is superior to non-cooperative sensing and relay-based method [3] in terms of high sensing agility and less interference to the PU. Especially, comparing with [3], the proposed design increases the detection speed by 48% and reduces the interference to PU by 43%. This new sensing protocol owns the features of low complexity and independence of special hardware support, making it easy and flexible for real system implementation.

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DecTDMA: A Decentralized-TDMA

Petig

Schiller

2016

Lecture Notes in Computer Science

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In wireless sensor networks (WSNs), different motes may transmit packets concurrently, i.e., having overlapping transmission periods. As a result of this contention, there are no packet reception guarantees and significant bandwidth can be lost. This contention can have a strong impact on the performance together with other kinds of interference sources, e.g., ambient noise. As a result, WSN's connectivity tends to have a very dynamic nature. In this paper, we devise DecTDMA (Decentralized-TDMA), a fully decentralized medium access controller (MAC) that significantly reduces contention. It is based on a self-stabilizing algorithm for time division multiple access (TDMA). This self-stabilizing TDMA algorithm uses no external assistance or external references, such as wireless access points (WAPs) and globally-synchronized clocks. We present the design and implementation of DecTDMA and report encouraging results: our Cooja simulations and Indriya testbed experiments show stable connectivity and high medium utilization in both single and multi-hop networks. Since DecTDMA has favorable characteristics with respect to connection stability, we show that common link quality estimation (LQE) techniques further improve the operation of DecTDMA in the dynamic environment of low-power wireless networks.

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A Singlehop Collaborative Feedback Primitive for Wireless Sensor Networks

Cited by 23 publications

References 16 publications

Bin-MAC: A Hybrid MAC for Ultra-compact Wireless Sensor Nodes

Bin-MAC: A Hybrid MAC for Ultra-compact Wireless Sensor Nodes

Efficient Cooperative Spectrum Sensing in Cognitive Radio

DecTDMA: A Decentralized-TDMA

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