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Data collection is of paramount importance in many applications of wireless sensor networks (WSNs). Especially, to accommodate ever increasing demands of signal source coding applications, the capacity of processing multi-user data query is crucial in WSNs where the efficiency is one key consideration. To that end, this paper presents EDCA: an Efficient Data Collection Approach for data query in WSNs,...
Cooperation enforcement in Mobile Ad Hoc Networks (MANET) and Wireless Sensor Networks (WSN) typically relies on separate detection and punishment schemes that isolate selfish nodes from routing and receiving network services. However, cooperative nodes then have to carry all the traffic. We propose a system that enforces cooperation smoothly and assures a fair distribution of bandwidth, as well as...
Wireless Sensor Networks (WSNs) composed of inexpensive devices allow the possibility of large deployments aimed at monitoring remote, or possibly hostile, areas. However, due to the unique traffic patterns exhibited by monitoring sensor networks, the lifetime of a large WSN is constrained by the burden placed on nodes near the sink node to forward additional traffic as more nodes are deployed. We...
IEEE 802.15.4 is the emerging next generation wireless standard designed for low-rate wireless personal area networks (LR-WPAN), which suit wireless sensor networks applications. It attempts to provide a low cost, low power and short range wireless networking. The QoS is more challenging in heterogeneous wireless sensors networks, where a diverse mixture of sensors for monitoring temperature, pressure,...
In this paper, we study a wireless sensor network (WSN) as a social network in which the embedded sensors are the main entities as opposed to human beings in a traditional social network. In wireless sensor networks, the nodes resemble individuals in a way that they communicate with their peers, sometimes selectively hiding some information, sometimes selectively exposing some other information, generating...
Wireless sensor networks (WSNs) require energy- efficient protocols to improve the network lifetime. In this work, we adopt a cross-layer strategy that considers routing and MAC layers jointly. At the routing layer, we propose balancing the traffic through the WSN. We show that sending the traffic generated by each sensor node through multiple paths instead of using a single path allows significant...
This paper proposes AREA-MAC, a medium access control (MAC) protocol for wireless sensor networks (WSNs). AREA-MAC reduces latency and energy consumption of nodes by using low power listening (LPL) with short preamble messages. Other protocols like B-MAC use long preamble messages that cause higher latency, energy consumption, and control overhead on nodes. AREA-MAC provides a reasonable trade-off...
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