Intelligent Priority-Assignment Mechanism
for Biomedical Sensor Networks
Biomedical wireless sensor networks
(BWSN) emerged from the
integration of biomedical sensors with wireless network and have great potential
applications in medical scenarios. BWSN are required to handle data
according to time constraint associated with it. Data in medical emergency scenario
is mostly real time and thus requires appropriate real time actions to handle it.
Many protocols have been proposed recently to handle real time traffic in wireless
sensor networks. Most of them are based on end-to-end path discovery with recovery.
Not much has been done to handle real time traffic in WSN using queuing models.
In this project, we intent to develop an intelligent priority assignment mechanism
(IPAM) which assigns the priority to the data streams dynamically on the basis of
their criticality. A queuing scheduler will be developed that will adaptively schedule
different types of data flows on the basis of their priority assigned by IPAM. The
scheme will be adaptive to the network conditions as well. It will continuously
monitor the queuing delay to provide end-to-end QoS without invoking any congestion
control and avoidance mechanism. It will adaptively schedule resources on the basis
of priority and give preferential treatment to the data flows with real time requirements.
Project status: In
Progress
Supervised by: Dr. S.A. Hussain
Imran Raza
Jitter resilient TCP for Biomedical Wireless Multimedia Sensor Networks (BWMSN)
Wide range multimedia based applications
of Wireless Sensor Networks (WSN) have fostered the development of Wireless Multimedia Sensor Networks (WMSN). Existing WSN protocols and standards need to be rethought
in order to transfer multimedia contents in WMSN. An efficient transport layer protocol
is required for WMSN to transfer multimedia contents such as still images, video
& audio streams providing end-to-end reliability and congestion control. Existing
TCP solutions are inappropriate for WMSN as they cannot distinguish between bad
channel conditions and congestion. TCP variants have been proposed for WSN to provide
QoS with the help of different congestion control techniques. Such solutions do
not handle jitter induced by TCP, jitter is a key factor that limits the multimedia
transport based on TCP. This project intend to study the multimedia application
based on TCP in WMSN and would develop a scheme to minimize jitter for such TCP
based application. As a case study, we consider application of WMSN in medical Emergency
where it is required to transfer still images, audio and video with minimum jitter,
we call such networks Biomedical Wireless Multimedia Sensor Networks (BWMSN).
Project status: In
Progress
Supervised by: Dr. S.A. Hussain
Imran Raza
Dynamic routing in wireless
multimedia sensor networks
The purpose of this project is to optimize network layer to support real time multimedia traffic in WMSN. Existing solutions
identify different routing metrics such as delay, energy etc. to support multimedia
based real time traffic in WMSN. The choice of routing metrics and their weights
depends upon the dynamic network conditions and should not be user defined. We will
identify routing metrics that could be optimized and weighted to support multimedia
traffic and would develop a scheme to automatically adjust the weights of identified
factors based on the dynamic network conditions thus shifting the decision making
from the user end into the network.
Project status: In
Progress
Supervised by: Dr. S.A. Hussain
Imran Raza
WiFi enabled WiMax Networks
The objective of this research project is
to provide internetworking between WLAN (IEEE 802.11) and WMAN (IEEE 802.16) with
guaranteed QoS. Interoperability, end-to-end QoS profile mapping & rerouting
of packets issue needs to be resolved.
Project status: In
Progress
Supervised by: Dr. S.A. Hussain
Imran Raza
Reliable data delivery in
wireless sensor networks
The purpose of this research project is to
explore design issues such as latency, reliable data delivery and security at MAC
layer in WSN. The data collected in the WSN by the sensor has to be transported
to the link reliably. The nature of the WSN applications makes reliable data delivery
an important research issue. The dynamic topology of WSN demands an effective solution
to avoid
latency in data delivery.
Project status: In Progress
Supervised by:
Dr. S.A. Hussain
Imran Raza