Truthful low-cost unicast in sel .sh wireless networks

2004 ◽  
Author(s):  
WeiZhao Wang ◽  
Xiang-Yang Li
Keyword(s):  
Wireless Networks ◽  
Low Cost

Wi-Fi Deployment in Large New Zealand Organizations

2007 ◽  
pp. 24-271
Author(s):  
Bryan Houliston ◽  
Nurul Sarkar
Keyword(s):  
Wireless Networks ◽  
New Zealand ◽  
Case Studies ◽  
Low Cost ◽  
Local Area Networks ◽  
Local Area ◽  
Wireless Local Area Networks ◽  
User Mobility ◽  
Ieee 802.11B

Wi-Fi (also known as IEEE 802.11b) networks are gaining widespread popularity as wireless local area networks (WLANs) due to their simplicity in operation, robustness, low cost, and user mobility offered by the technology. It is a viable technology for wireless local area networking applications in both business and home environments. This chapter reports on a survey of large New Zealand organizations focusing on the level of Wi-Fi deployment, reasons for non-deployment, the scope of deployment, investment in deployment, problems encountered, and future plans. Our findings show that most organizations have at least considered the technology, though a much smaller proportion has deployed it on any significant scale. A follow up review of the latest published case studies and surveys suggests that while Wi-Fi networks are consolidating, interest is growing in wider area wireless networks.

Constructing Minimal Maintenance Virtual Backbones over Low-Cost Wireless Networks

2019 ◽  
Author(s):  
Alexandros Zervopoulos ◽  
Vasileios Komianos ◽  
Konstantinos Skiadopoulos ◽  
Georgios Tsoumanis ◽  
Athanassios Spiggos ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Low Cost

Wireless mesh networks

2008 ◽  
Vol 14 (8) ◽  
pp. 401-403 ◽  
Author(s):  
Xinheng Wang
Keyword(s):  
Wireless Networks ◽  
Large Scale ◽  
Ad Hoc ◽  
Mesh Networks ◽  
Low Cost ◽  
Mesh Network ◽  
Self Healing ◽  
Large Area ◽  
Satellite Systems ◽  
Wireless Mesh

Wireless telemedicine using GSM and GPRS technologies can only provide low bandwidth connections, which makes it difficult to transmit images and video. Satellite or 3G wireless transmission provides greater bandwidth, but the running costs are high. Wireless networks (WLANs) appear promising, since they can supply high bandwidth at low cost. However, the WLAN technology has limitations, such as coverage. A new wireless networking technology named the wireless mesh network (WMN) overcomes some of the limitations of the WLAN. A WMN combines the characteristics of both a WLAN and ad hoc networks, thus forming an intelligent, large scale and broadband wireless network. These features are attractive for telemedicine and telecare because of the ability to provide data, voice and video communications over a large area. One successful wireless telemedicine project which uses wireless mesh technology is the Emergency Room Link (ER-LINK) in Tucson, Arizona, USA. There are three key characteristics of a WMN: self-organization, including self-management and self-healing; dynamic changes in network topology; and scalability. What we may now see is a shift from mobile communication and satellite systems for wireless telemedicine to the use of wireless networks based on mesh technology, since the latter are very attractive in terms of cost, reliability and speed.

scholarly journals Design of low-cost multimode fiber-fed indoor wireless networks

2006 ◽  
Vol 54 (8) ◽  
pp. 3426-3432 ◽  
Author(s):  
A. Das ◽  
A. Nkansah ◽  
N.J. Gomes ◽  
I.J. Garcia ◽  
J.C. Batchelor ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Low Cost ◽  
Multimode Fiber ◽  
Indoor Wireless

scholarly journals Comparative study between metaheuristic algorithms for internet of things wireless nodes localization

2022 ◽  
Vol 12 (1) ◽  
pp. 660
Author(s):  
Rana Jassim Mohammed ◽  
Enas Abbas Abed ◽  
Mostafa Mahmoud El-gayar
Keyword(s):  
Wireless Networks ◽  
Internet Of Things ◽  
Heuristic Algorithms ◽  
Narrow Range ◽  
Low Cost ◽  
Grey Wolf ◽  
Grey Wolf Optimization ◽  
Wide Range ◽  
Limited Power ◽  
Metaheuristic Optimization Algorithms

<p>Wireless networks are currently used in a wide range of healthcare, military, or environmental applications. Wireless networks contain many nodes and sensors that have many limitations, including limited power, limited processing, and narrow range. Therefore, determining the coordinates of the location of a node of the unknown location at a low cost and a limited treatment is one of the most important challenges facing this field. There are many meta-heuristic algorithms that help in identifying unknown nodes for some known nodes. In this manuscript, hybrid metaheuristic optimization algorithms such as grey wolf optimization and salp swarm algorithm are used to solve localization problem of internet of things (IoT) sensors. Several experiments are conducted on every meta-heuristic optimization algorithm to compare them with the proposed method. The proposed algorithm achieved high accuracy with low error rate (0.001) and low power <br />consumption.</p>

Best Practices in Designing Low-Cost Community Wireless Networks

2013 ◽  
pp. 215-235
Author(s):  
Tomas Dulik ◽  
Michal Bliznak ◽  
Roman Jasek
Keyword(s):  
Growth Rate ◽  
Wireless Networks ◽  
Best Practices ◽  
Success Factors ◽  
New Technologies ◽  
Low Cost ◽  
Broadband Access ◽  
The European Union ◽  
Internet Service ◽  
Non Profit

The Czech Republic (CR) has been ranked the 1st among the countries of the European Union (EU) countries in the growth rate of broadband access. The Internet penetration rate has increased by 48 percent between 2005 and 2011. This high growth rate is driven by the entry of new operators and the proliferation of Community Wireless Networks (CWNs). The CR holds the first place in EU in the number of newly entered operators. There are 1150 companies providing Internet access in 601 Czech towns and 5645 villages. In addition, a number of community wireless networks have emerged as an alternative of these commercial Internet Service Providers (ISPs). Their main purpose is to increase the affordability and penetration of broadband Internet in the country. This chapter discusses the contribution of CWNs to the proliferation and affordability of broadband access in the CR, focusing on the reasons for their success and popularity. Their key success factors include obtaining a non-profit status, engaging academics, and cooperating with government entities. They formed the CZFree.net forum for experts and volunteers to exchange information and best practices with respect to new technologies, design considerations, and technical and social issues. It also articulates on technology options and best practices for building low-cost CWNs. Furthermore, the chapter discusses the role of the Netural czFree eXchange association in aggregating their technical, financial, and personal resources of individual CWNs. Thanks to this association and the CZFree.net forum, CWNs in the CR have become influential competitors in the local telecommunication industry.

Multimedia Transcoding in Mobile and Wireless Networks

2011 ◽  
pp. 258-280 ◽  
Author(s):  
Shiguo Lian
Keyword(s):  
Wireless Networks ◽  
Video Coding ◽  
Low Cost ◽  
Scalable Video Coding ◽  
Narrow Channel ◽  
Scalable Video ◽  
Multimedia Content ◽  
Multimedia Encryption ◽  
Mobile And Wireless Networks ◽  
Open Issues

Secure multimedia transcoding is a challenge that operates the encrypted multimedia content directly. For example, the encrypted multimedia data’s bit rate is changed directly in order to adapt a narrow channel. However, since it avoids the triple operations decryption-transcoding-re-encryption, it is suitable for the application scenarios requiring low cost operations, such as wireless or mobile multimedia communication. In this chapter, the secure transcoding scheme for scalable video coding is proposed and analyzed, together with the introduction to scalable video coding and multimedia encryption, the overview of existing secure transcoding schemes, and some open issues in this field. The chapter is expected to provide researchers or engineers valuable information on secure multimedia transcoding and communication.

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