A. K. Jain

Internet of Things: A survey on architecture, technologies, protocols and challenges

Internet of Things (IoT) can be thought of as the next big step in internet technology. It is enabled by the latest developments in communication technologies and internet protocols. This paper surveys IoT in respect of layer architecture, enabling technologies, related protocols and challenges.

Layer-wise Security Schemes with Secure Routing Protocol for Integrated UMTS and WLAN Ad Hoc Networks

It is well known that the Integrated Universal Mobile Telecommunications System (UMTS) and Wireless Local Area Network (WLAN) ad hoc network is not secure, due to the vulnerable routing infrastructure of ad hoc nodes to a variety of active attacks. In this paper, we introduce a secure, robust newly developed routing protocol, namely SNAuth_SPERIPv2, based on a Bellman Ford algorithm. It can be widely used in heterogeneous Next-Generation Networks (NGNs) on the inter-domain routing for un-trustworthy environment. A security framework is proposed for determining how the combination of the secure routing protocol and different layer security schemes (DSSS, CCMP-AES, IPSec and WTLS) should be working together against Wormhole Attack (WHA). WHA analysis and simulation results show the security scheme strength in terms of QoS metrics under CBR background traffic.

A survey of routing protocols in Wireless Sensor Networks: Hierarchical routing

Wireless Sensor Networks (WSNs) is the most developing areas in many factors like environment & wildlife monitoring, security & military surveillance, healthcare and many more. Also, routing protocols play a very important part in terms of efficiency in WSNs. Due to limitations of unreliable low power links and resources between the sensor nodes; design of an efficient routing protocol is a difficult problem. This paper has surveyed about Routing Techniques and basically about Hierarchical based routing with its protocols like LEACH, TEEN, PEGASIS, SEP and DEEC. And then finally their comparative study is provided.

Comparative Performance Analysis of WiMAX Networks with CBR traffic on various Routing Protocols

The IEEE 802.16 standard, also known as worldwide interoperability for microwave access (WiMAX), has emerged as the strongest contender for broadband wireless technology with promises to offer guaranteed Quality of Service (QoS). WiMAX (IEEE 802.16) networks support high mobility. This paper presents a comparative performance analysis for WiMAX networks with CBR traffic on AODV, DSR and OLSR routing protocols.

Effect of congestion on the performance of IEEE 802.11 network

Unlike the wired networks, congestion measurement in IEEE 802.11 networks is more difficult owing to factors such as time-variant channel capacity and contention among neighbouring nodes. It degrades the throughput and increases delay and packet drops. This paper presents an overview on IEEE 802.11 networks and issue of congestion in them. OPNET simulations were carried out to estimate the effect of congestion situation on the performance of the network model. Simulations were carried out at 11 Mbps data rate except congested node and total simulation time used was 900 simulations-seconds.