[PDF] Top 20 Energy-efficient cooperative relay protocols for wireless sensor networks

... Cooperative Relay Techniques 1.1 Introduction In wireless communications, the quality of a received signal is attenuated by not only additive noise, but also path-loss and multi-path fading ... Voir le document complet

... 2. WIRELESS SENSOR NETWORKS ROUTING PROTOCOLS ...the efficient use of network energy by avoid- ing energy depletion of the non-leaf nodes in EAD by hierarchically dividing ... Voir le document complet

... in wireless sensor networks for improving the efficiency of energy ...the sensor and the sink, and the distance between the sensor and its two-hop ...Each sensor ... Voir le document complet

... keywords: Wireless sensor networks, energy efficiency, ...NTRODUCTION Wireless sensor networks (WSNs) consist of tiny nodes capable of sensing, computing and communicating ... Voir le document complet

... novel energy-efficient MAC protocol based on asynchronous duty cycling for Wireless Sensor Networks ...the sensor nodes is initiated by sending a wake-up beacon from the ... Voir le document complet

... exploiting cooperative communication to make wireless sensor networks operate more energy ...complexity for the implementation, while it is vulnerable to time synchronization ... Voir le document complet

... buffer for which B sets the number of queued messages, B is then related to network ...vary for each combination. For instance, there can be B active devices with each one packet to send or less than ... Voir le document complet

... their energy consumption depends on the probability that such nodes wake up while the channel is busy or ...expressions for all possible combination of wakeup of the ... Voir le document complet

... in wireless networks, which can be divided into three main categories: threats to privacy, threats to control, and threats to availability ...a sensor node and only forwarding a specific subset of ... Voir le document complet

... 2.6, for all schemes. Figure 2.8 shows the total energy consumption per bit for different schemes versus distances from 1 to 27 ...the energy efficiency investigation in Figure ...in ... Voir le document complet

... TRANSPORT PROTOCOLS OVER LOW POWER NETWORKS (M2M) applications such as smart energy and building ...HTTP for integration with the web while meeting specialized requirements such as multicast ... Voir le document complet

... Abstract—Wireless sensor networks are conceived to monitor a certain application or physical phenomena and are supposed to function for several years without any human intervention for ... Voir le document complet

... of IEEE 802.15.4 and cannot be applied to low duty-cycle protocols. In the beacon-enabled mode, the broadcast mechanism must cope both with unreliable links and with a duty-cycle MAC. Consequently, most papers ... Voir le document complet

... Discussions Currently in the LiveWSN, only the reprogramming to the application code can be supported, whereas the repro- gramming to the system modules such as the hardware drivers and the network protocols ... Voir le document complet

... —Wireless Sensor Networks (WSNs) are used today in many applications that differ in their ob- jectives and specific ...consider sensor redundancy in WSN and we conduct an experimental study to ... Voir le document complet

... A cooperative protocol for wireless mesh networks is proposed in this ...best relay terminal so only one terminal is relaying the source message when cooperation is ...best relay ... Voir le document complet

... Abstract—Wireless sensor networks are employed in many applications such as health care, environmental sensing, and industrial ...of efficient Medium Access Control (MAC) protocols, ... Voir le document complet

... single wireless channel, which they may use to communicate with several ...two sensor nodes operate on the same wireless channel, they may interfere with each other: packets will lost and will ... Voir le document complet

... of energy that are available to be harvested must be defined before the WSN deployment depending on the available sources, hardware and application constraints and also the type of EM ...harvested energy ... Voir le document complet

... for our ...a wireless sensor network in an energy-efficient ...way. For instance, [7] and [8] consider the problem of selecting a subset of sensors (pollers) in charge of ... Voir le document complet