A real-time cross-layer design of the multimedia application layer with a MIMO based wireless physical layer

2008 ◽  
Author(s):  
Arulsaravana Jeyaraj ◽  
Magda El Zarki
Keyword(s):  
Real Time ◽  
Physical Layer ◽  
Multimedia Application ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Application Layer

Cross-Layer Protocols for Multimedia Communications over Wireless Networks

2011 ◽  
pp. 318-354
Author(s):  
Jaydip Sen
Keyword(s):  
Real Time ◽  
Transport Layer ◽  
The Internet ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Application Layer ◽  
Link Layer ◽  
Adaptive Controls ◽  
Wireless Medium ◽  
Hoc Networks

In the last few years, the Internet throughput, usage, and reliability have increased almost exponentially. The introduction of broadband wireless mobile ad hoc networks (MANETs) and cellular networks, together with increased computational power, have opened the door for a new breed of applications to be created; namely, real-time multimedia applications. Delivering real-time multimedia traffic over a complex network like the Internet is a particularly challenging task since these applications have strict quality-of-service (QoS) requirements on bandwidth, delay, and delay jitter. Traditional Internet protocol (IP)-based best effort service is not able to meet these stringent requirements. The time-varying nature of wireless channels and resource constrained wireless devices make the problem even more difficult. To improve perceived media quality by end users over wireless Internet, QoS supports can be addressed in different layers, including application layer, transport layer, and link layer. Cross layer design is a well-known approach to achieve this adaptation. In cross-layer design, the challenges from the physical wireless medium and the QoS-demands from the applications are taken into account so that the rate, power, and coding at the physical (PHY) layer can be adapted to meet the requirements of the applications given the current channel and network conditions. A number of propositions for cross-layer designs exist in the literature. In this chapter, an extensive review has been made on these cross-layer architectures that combine the application-layer, transport layer, and the link layer controls. Particularly, issues like channel estimation techniques, adaptive controls at the application and link layers for energy efficiency, priority based scheduling, transmission rate control at the transport layer, and adaptive automatic repeat request (ARQ) are discussed in detail.

scholarly journals Security of Data with Enhanced Technique of AASR Protocol for Secure Crosslayer Routing in MANET

2020 ◽  
Vol 6 (6) ◽  
pp. 17-21
Author(s):  
Shifana Begum ◽  
Megha M Gamskar ◽  
Prakrithi Mogasale
Keyword(s):  
Power Control ◽  
Routing Protocol ◽  
Physical Layer ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Transmission Power ◽  
Dos Attacks ◽  
Layered Architecture ◽  
And Performance ◽  
Reliable Path

MANET supports communication without any wired medium and with layered architecture. It does not uses any infrastructure support. Present alternative to the layered architecture is cross layer design approaches and the interaction between the layers is supported. The security of CLPC (Cross Layer Design Approach for Power control) routing protocol will be discussed in this paper. The transmission power and finding the effective route between source and destination can be improved by CLPC. The reliable path between the source and destination can be determined by RSS from the physical layer, but it is vulnerable to the DOS attacks. Here we propose a Secure cross layer power control protocol SCLPC to placate the attacks on CLPC. The SCLPC protocol provides better results and performance.

scholarly journals Efficient and Secure Multicast in WirelessMAN: A Cross-layer Design

2007 ◽  
Vol 3 (3) ◽  
pp. 199 ◽  
Author(s):  
Chin-Tser Huang ◽  
Manton Matthews ◽  
Matthew Ginley ◽  
Xinliang Zheng ◽  
Chuming Chen ◽  
...  
Keyword(s):  
Cross Layer ◽  
Cross Layer Design ◽  
Security Measures ◽  
Application Layer ◽  
Mac Layer ◽  
Forward Secrecy ◽  
Group Management ◽  
Multicast Service ◽  
Secure Protocol ◽  
Security Property

Effectively adding security measures to a multicast service is an intriguing problem, especially when the service isdeployed in a wireless setting. Next generation IEEE 802.16standard WirelessMAN networks are a perfect example of this problem, and the latest draft specification of the standard includes a secure protocol solution called Multicast and Broadcast Rekeying Algorithm (MBRA). In this paper, we expose the security problems of MBRA, including non-scalability and omission of backward and forward secrecy, and propose new approaches, ELAPSE and ELAPSE+, to address these problems. In particular, ELAPSE+ makes use of membership and mobility information gathered in the application layer to augment the adaptive group management in the MAC layer. We analyze the security property of ELAPSE and ELAPSE+, and compare their performances with MBRA by simulating group rekeying scenarios.

Cross-Layer Radio Resource Management Protocols for QoS Provisioning in Multimedia Wireless Networks

2010 ◽  
pp. 463-486
Author(s):  
Tarek Bejaoui ◽  
Nidal Nasser
Keyword(s):  
Wireless Networks ◽  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Qos Provisioning ◽  
Multimedia Wireless Networks ◽  
The Cross ◽  
Layered Design

This chapter introduces the cross layer design for resource allocation over multimedia wireless networks. Conventional layered packet scheduling and call admission control schemes are presented and a number of cross-layered protocols that are recently proposed are investigated. The chapter highlights the QoS improvement and the performance gain obtained while considering the interlayer dependencies concept for various real-time and non-real-time applications. The authors hope that this chapter will assist in the understanding of the cross layering and its enhancement of the layered design for QoS provisioning in future multimedia wireless networks.

Cross-Layer Radio Resource Management Protocols for QoS Provisioning in Multimedia Wireless Networks

2010 ◽  
pp. 417-441
Author(s):  
Tarek Bejaoui ◽  
Nidal Nasser
Keyword(s):  
Wireless Networks ◽  
Real Time ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Qos Provisioning ◽  
Multimedia Wireless Networks ◽  
The Cross ◽  
Layered Design

This chapter introduces the cross layer design for resource allocation over multimedia wireless networks. Conventional layered packet scheduling and call admission control schemes are presented and a number of cross-layered protocols that are recently proposed are investigated. The chapter highlights the QoS improvement and the performance gain obtained while considering the interlayer dependencies concept for various real-time and non-real-time applications. The authors hope that this chapter will assist in the understanding of the cross layering and its enhancement of the layered design for QoS provisioning in future multimedia wireless networks.

scholarly journals Research on MVB conformance test system

2022 ◽  
Vol 355 ◽  
pp. 02040
Author(s):  
Jinxue Cui ◽  
Bin Han
Keyword(s):  
Real Time ◽  
Physical Layer ◽  
Test System ◽  
Transport Layer ◽  
Application Layer ◽  
Practical Application ◽  
Link Layer ◽  
Consistency Test ◽  
Conformance Test ◽  
Design And Implementation

The design and implementation of the MVB conformance test system is of great significance in both professional theory and practical application. Conformance test for MVB, mainly to determine whether the MVB equipment IUT is consistent with the MVB protocol standard requirements in the TCN standard. The conformance test of MVB equipment IUT covers most of the contents of the RTP real-time protocol such as the physical layer, link layer, network layer, transport layer and application layer. This subject will analyse and study the consistency test of the MVB physical layer.

scholarly journals Cross-Layer Design for Downlink Scheduling Combined with Call Admission Control in Wireless Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Manikandan Arunachalam ◽  
Balasubadra Kandasamy
Keyword(s):  
Admission Control ◽  
Adaptive Modulation ◽  
Packet Delay ◽  
Physical Layer ◽  
Adaptive Modulation And Coding ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Network Simulator ◽  
Mac Layer ◽  
Downlink Scheduling

Scheduling with admission control is proposed based on the integration of the parameters of physical layer and MAC layer called cross-layer design. To achieve the throughput, resource allocation is carried out based on the adaptive modulation and coding (AMC) in the physical layer and scheduling in MAC layer with rate adaptation. When link adaptation is applied, the total energy consumed will be reduced, which will lead to the optimization. Here the physical layer and MAC layer parameters are jointly analyzed to achieve the cross-layer integration for the proposed problem. Based on this cross-layer integration the packet delay and throughput of the multiuser system are analyzed. All the simulations were carried out in 3G simulation environment like Qualnet and Network Simulator and results were presented.

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