VIZOR: Virtually zero margin adaptive RF for ultra low power wireless communication

2007 ◽  
Author(s):  
Rajarajan Senguttuvan ◽  
Shreyas Sen ◽  
Abhijit Chatterjee
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Ultra Low Power

scholarly journals treNch: Ultra-Low Power Wireless Communication Protocol for IoT and Energy Harvesting

Sensors ◽  
2020 ◽  
Vol 20 (21) ◽  
pp. 6156
Author(s):  
Fernando Moreno-Cruz ◽  
Víctor Toral-López ◽  
Antonio Escobar-Molero ◽  
Víctor U. Ruíz ◽  
Almudena Rivadeneyra ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Wireless Communication ◽  
Low Power ◽  
Communication Protocol ◽  
Power Level ◽  
Power Input ◽  
Security Level ◽  
Current Standard ◽  
Ultra Low Power ◽  
Wireless Communication Protocol

Although the number of Internet of Things devices increases every year, efforts to decrease hardware energy demands and to improve efficiencies of the energy-harvesting stages have reached an ultra-low power level. However, no current standard of wireless communication protocol (WCP) can fully address those scenarios. Our focus in this paper is to introduce treNch, a novel WCP implementing the cross-layer principle to use the power input for adapting its operation in a dynamic manner that goes from pure best-effort to nearly real time. Together with the energy-management algorithm, it operates with asynchronous transmissions, synchronous and optional receptions, short frame sizes and a light architecture that gives control to the nodes. These features make treNch an optimal option for wireless sensor networks with ultra-low power demands and severe energy fluctuations. We demonstrate through a comparison with different modes of Bluetooth Low Energy (BLE) a decrease of the power consumption in 1 to 2 orders of magnitude for different scenarios at equal quality of service. Moreover, we propose some security optimizations, such as shorter over-the-air counters, to reduce the packet overhead without decreasing the security level. Finally, we discuss other features aside of the energy needs, such as latency, reliability or topology, brought again against BLE.

An Electronic Shelf Label System Based on WSN

2013 ◽  
Vol 765-767 ◽  
pp. 1718-1721 ◽  
Author(s):  
Chun Hui Zhou ◽  
Pan Mei ◽  
Li Wen Huang ◽  
Ke Zhong Liu ◽  
Yuan Qiao Wen
Keyword(s):  
Wireless Sensor Network ◽  
Wireless Communication ◽  
Low Power ◽  
Base Station ◽  
Wireless Sensor ◽  
Low Power Consumption ◽  
High Error Rate ◽  
Ultra Low Power ◽  
Label System ◽  
Time Price

Traditional paper labels on the supermarkets shelves are of many shortcomings such as the high error rate, high losing rate, increasing cost and unrealizable realtime-updating caused by manual management. In order to overcome these shortcomings, this paper aims to design a new Electronic Shelf Label system. Firstly, the overall framework is introduced. Then an ultra-low-power ESL and wireless communication base station modules are studied respectively. The MAC and router protocols are also designed based on Wireless Sensor Network (WSN) to meet the requirement of low power consumption and real-time price update. The Electronic Shelf Label system can improve the efficiency of the label management greatly and enhance customers experiences thus has a wide prospect of application.

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