QoS and Mobility Management Issues on Next Generation Mobile WiMAX Networks

Author(s):  
Sajal Saha ◽  
Asish K. Mukhopadhyay ◽  
Anup Kumar Bhattacharjee

Selection of a MIMO (Multiple Input Multiple Output) antenna to achieve high throughput, minimize errors, and optimize data speed is an important design issue. Radio resource management to provide Quality of Service (QoS) in WiMAX involves dynamic scheduling of resources according to the user’s priority, based classes Platinum, Gold, Silver, and Bronze. Mobility and handoff management in WiMAX is another important issue involving location update, signaling traffic and service delay, and call blocking and dropping. This chapter focuses on some issues concerning MIMO configuration to improve transmit diversity, developing an appropriate scheduling algorithm to improve QoS, and presenting a novel mobility management protocol THMIP (Three Level Hierarchical Mobile IP) in IEEE 802.16e environment to reduce signaling cost with respect to QoS parameters like throughput, end-to-end delay, interference, path loss, bit error rate, and Signal-to-Noise Ratio (SNR). For the simulation, the authors use OPNET Modeler and MATLAB.

2012 ◽  
pp. 151-180
Author(s):  
Arijit Ukil

Network mobility (NEMO) management is concerned about the mobility management of an entire wireless mobile network to provide uninterrupted network connectivity to many mobile devices moving together in the mobile network. This is particularly important for ubiquitous computing, which commonly means anytime, anywhere computing and communication. Most of the 3G and entire 4G and beyond wireless communication technology is all-IP. This growing use of IP devices in portable applications has created the demand for mobility support for entire networks of IP devices. NEMO solves this problem by extending Mobile IP. Devices on a mobile network are unaware of their network’s mobility; however, they are provided with uninterrupted Internet access even when the network changes its attachment point to the Internet. The main objective of NEMO is to provide continuous, optimal, and secure Internet access to all nodes and even recursively nested mobile sub-nets inside a moving network. Internet Engineering Task Force (IETF) is engaged in standardizing NEMO Basic Support protocol that ensures uninterrupted connectivity to nodes within a mobile network via a mobile router. This protocol extends the mechanisms utilized in the host mobility management protocol Mobile IPv6. There are few open problems remain to be addressed in NEMO. In this chapter, we discuss about NEMO basic support protocols, its features, and other related issues.


Author(s):  
Adnan J. Jabir

<p>Mobility management protocols are very essential in the new research area of Internet of Things (IoT) as the static attributes of nodes are no longer dominant in the current environment. Proxy MIPv6 (PMIPv6) protocol is a network-based mobility management protocol, where the mobility process is relied on the network entities, named, Mobile Access Gateways (MAGs) and Local Mobility Anchor (LMA). PMIPv6 is considered as the most suitable mobility protocol for WSN as it relieves the sensor nodes from participating in the mobility signaling. However, in PMIPv6, a separate signaling is required for each mobile node (MN) registration, which may increase the network signaling overhead and lead to increase the total handoff latency. The bulk binding approaches were used to enhance the mobility signaling for MNs which are moving together from one MAG to another by exchanging a single bulk binding update message. However, in some cases there might be several MNs move at the same time but among different MAGs. In this paper, a bulk registration scheme based on the clustered sensor PMIPv6 architecture is proposed to reduce the mobility signaling cost by creating a single bulk message for all MNs attached to the cluster. Our mathematical results show that the proposed bulk scheme enhances the PMIPv6 performance by reducing the total handoff latency.</p>


Author(s):  
Arijit Ukil

Network mobility (NEMO) management is concerned about the mobility management of an entire wireless mobile network to provide uninterrupted network connectivity to many mobile devices moving together in the mobile network. This is particularly important for ubiquitous computing, which commonly means anytime, anywhere computing and communication. Most of the 3G and entire 4G and beyond wireless communication technology is all-IP. This growing use of IP devices in portable applications has created the demand for mobility support for entire networks of IP devices. NEMO solves this problem by extending Mobile IP. Devices on a mobile network are unaware of their network’s mobility; however, they are provided with uninterrupted Internet access even when the network changes its attachment point to the Internet. The main objective of NEMO is to provide continuous, optimal, and secure Internet access to all nodes and even recursively nested mobile sub-nets inside a moving network. Internet Engineering Task Force (IETF) is engaged in standardizing NEMO Basic Support protocol that ensures uninterrupted connectivity to nodes within a mobile network via a mobile router. This protocol extends the mechanisms utilized in the host mobility management protocol Mobile IPv6. There are few open problems remain to be addressed in NEMO. In this chapter, we discuss about NEMO basic support protocols, its features, and other related issues.


Author(s):  
Sajal Saha ◽  
Asish K Mukhopadhyay

The next generation networks must support mobility for ubiquitous communication between any two nodes irrespective of their locations. Mobile IP was the first protocol to support mobility. The process of registration in Mobile IP protocol requires large number of location updates, excessive signaling traffic and service delay. This problem is solved by Hierarchical Mobile IP (HMIP) using the concept of hierarchy of Foreign Agent (FA) and the Gateway Foreign Agent (GFA), Mobility Anchor Point (MAP) to localize the registration information. The performance depends upon the selection of GFA or MAP and some key parameters. This chapter discusses several HMIP based mobility management schemes with a comparative analysis of those protocols and proposes an efficient mobility management scheme.


2013 ◽  
Vol 5 (1) ◽  
pp. 35-40
Author(s):  
Roopali Garg ◽  
Shafi Singla

A quality of service is a fundamental component of the 4G broadband network for satisfactory service delivery by evolving internet application to end user, and managing the network resources. The 4G technology has emerged one of the most fruitful technologies as it supports large number of applications including VOIP, video conferencing, file transfer, video streaming and web browsing. IEEE 802.16E, IEEE 802.16M and LTE along with various application and QoS requirement also support Multiple-Input-multiple-output (MIMO) techniques including Spatial Multiplexing (SM), Space Time Block Coding(STBC) and Eigen Beam-forming (BM).In the paper we will study Physical, MAC layer of WiMAX and LTE. We will also study MIMO techniques. In this paper  the detailed study of the throughput for a MIMO mobile WiMAX system and LTE  under two different PHY PER QoS threshold. Various modulation and channel coding techniques have been applied.


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