An adaptive cross-layer scheduler for improved QoS support of multiclass data services on wireless systems

2005 ◽  
Vol 23 (2) ◽  
pp. 334-343 ◽  
Author(s):  
K.B. Johnsson ◽  
D.C. Cox
Keyword(s):  
Wireless Systems ◽  
Cross Layer ◽  
Data Services

Scheduling as an important cross-layer operation for emerging broadband wireless systems

2009 ◽  
Vol 11 (2) ◽  
pp. 74-86 ◽  
Author(s):  
Mehrdad Shariat ◽  
Atta Quddus ◽  
Seyed Ghorashi ◽  
Rahim Tafazolli
Keyword(s):  
Wireless Systems ◽  
Cross Layer ◽  
Broadband Wireless

Cross layer security solution for secure communication of sensors in Wireless Sensor Networks

2020 ◽  
Vol 01 ◽  
Author(s):  
Rakesh Saini ◽  
Naveen Kumar
Keyword(s):  
Wireless Sensor Networks ◽  
Wireless Sensor Network ◽  
Sensor Network ◽  
Wireless Systems ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Security Model ◽  
Multihop Wireless

: Safe direction-finding is extremely necessary for multihop wireless systems such as Wireless Sensor Networks. Multihop wireless systems are more defenseless to safety outbreaks as associated to single stage wireless networks. Cross layer design production a precise significant character for wireless sensor network submissions. Advanced security is actual significant for the achievement of announcement among sensor nodes in wireless sensor network because the numbers composed is regularly slight and the network is mostly susceptible. Numerous Security methods have been suggested to deliver safety resolutions beside numerous extortions to the Cross-layer modification techniques in Wireless sensor network. In this paper we overview the existing schemes for the security of cross-layer design in wireless sensor network. Proposed Security model will provide more security between sensor nodes and base station in wireless sensor network. Security is important for the success of the wireless sensor network because the data collected are often sensitive and the network is particularly vulnerable. In the cross-layer design, constraints are substituted between changed layers to protection well-organized use of energy. In this paper, we propose a secure security model that is based on cross layer design. It uses a cross layer optimization Mechanism. Reproduction consequences confirmation that our proposed safety model can achieve better in many situations and in unfriendly violence-disposed to situation.

scholarly journals History of Wireless Communication

2011 ◽  
Vol 15 (2) ◽  
pp. 37-42
Author(s):  
Tom Seymour ◽  
Ali Shaheen
Keyword(s):  
Wireless Communication ◽  
Wireless Systems ◽  
Satellite Networks ◽  
Wireless Access ◽  
Wireless Data ◽  
Broadband Wireless ◽  
Data Services ◽  
History Of ◽  
Technical Issues ◽  
Current History

The history of communication is an exciting topic. This article reviews various areas that makeup the current history of wireless communication. These topics include: the wireless vision, generations of wireless, technical issues, current wireless systems, wireless LaNs, Wide Area Wireless Data Services, Broadband Wireless Access, Satellite Wireless Access, Satellite Networks, and Bluetooth and this material will stimulate you to do more research in these various areas of the wireless industry.

Cross-Layer Performance of Scheduling and Power Control Schemes in Space-Time Block Coded Downlink Packet Systems

2009 ◽  
pp. 374-397
Author(s):  
Aimin Sang ◽  
Guosen Yue ◽  
Xiaodong Wang ◽  
Mohammad Madihian
Keyword(s):  
Power Control ◽  
Error Rate ◽  
Space Time ◽  
Diversity Gain ◽  
Cross Layer ◽  
Time Block ◽  
Data Services ◽  
The Cross ◽  
Point To Point ◽  
Delay Tolerant

In this chapter, we consider a cellular downlink packet data system employing the space-time block coded (STBC) multiple- input-multiple-output (MIMO) scheme. Taking the CDMA high data rate (HDR) system for example, we evaluate the cross-layer performance of typical scheduling algorithms and a point-to-point power control scheme over a time division multiplexing (TDM)-based shared MIMO channel. Our evaluation focuses on the role of those schemes in multi-user diversity gain, and their impacts on medium access control (MAC) and physical layer performance metrics for delay-tolerant data services, such as throughput, fairness, and bit or frame error rate. The cross-layer evaluation shows that the multi-user diversity gain, which comes from opportunistic scheduling schemes exploiting independent channel oscillations among multiple users, can increase the aggregate throughput and reduce the transmission error rate. It also shows that STBC/MIMO and one-bit and multi-bit power control can indeed help the physical and MAC layer performance but only at a risk of limiting the multiuser diversity gain or the potential throughput of schedulers for delay-tolerant bursty data services.

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