Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
ESRT: event-to-sink reliable transport in wireless sensor networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
CODA: congestion detection and avoidance in sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
Mitigating congestion in wireless sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Congestion control and fairness for many-to-one routing in sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Wireless Sensor Networks for Home Health Care
AINAW '07 Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops - Volume 02
Approximating Low Latency Queueing Buffer Latency
AICT '08 Proceedings of the 2008 Fourth Advanced International Conference on Telecommunications
A new priority based congestion control protocol for Wireless Multimedia Sensor Networks
WOWMOM '08 Proceedings of the 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks
LACAS: learning automata-based congestion avoidance scheme for healthcare wireless sensor networks
IEEE Journal on Selected Areas in Communications - Special issue on wireless and pervasive communications for healthcare
ECODA: enhanced congestion detection and avoidance for multiple class of traffic in sensor networks
IEEE Transactions on Consumer Electronics
Upstream congestion control in wireless sensor networks through cross-layer optimization
IEEE Journal on Selected Areas in Communications
A survey of transport protocols for wireless sensor networks
IEEE Network: The Magazine of Global Internetworking
Wireless Personal Communications: An International Journal
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Wireless sensor networks consist of a large number of small, low-power sensors that communicate through wireless links. Wireless sensor networks for healthcare have emerged in recent years as a result of the need to collect data about patients' physical, physiological, and vital signs in the spaces ranging from personal to hospital and availability of the low cost sensors that enables this data collection. One of the major challenges in these networks is to mitigate congestion. In healthcare applications, such as medical emergencies or monitoring vital signs of patients, because of the importance and criticality of transmitted data, it is essential to avoid congestion as much as possible (and in cases when congestion avoidance is not possible, to control the congestion). In this paper, a data centric congestion management protocol using AQM (Active Queue Managements) is proposed for healthcare applications with respect to the inherent characteristics of these applications. This study deals with end to end delay, energy consumption, lifetime and fairness. The proposed protocol which is called HOCA avoids congestion in the first step (routing phase) using multipath and QoS (Quality of Service) aware routing. And in cases where congestion cannot be avoided, it will be mitigated via an optimized congestion control algorithm. The efficiency of HOCA was evaluated using the OPNET simulator. Simulation results indicated that HOCA was able to achieve its goals.