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Wireless networking is rapidly growing and becomes an inexpensive technology which allows multiple users to simultaneously access the network and the internet while roaming about the campus. In the present work, the software development of…

网络与互联网体系结构 · 计算机科学 2007-05-23 Sourav Dhar , Rabindranath Bera

Wireless Communication is an application of science and technology that has come to be vital for modern existence. From the early radio and telephone to current devices such as mobile phones and laptops, accessing the global network has…

网络与互联网体系结构 · 计算机科学 2013-05-06 Ibrahim AlShourbaji

Wireless devices need spectrum to communicate. With the increase in the number of devices competing for the same spectrum, it has become nearly impossible to support the throughput requirements of all the devices through current spectrum…

网络与互联网体系结构 · 计算机科学 2021-11-23 Aniq Ur Rahman , Mustafa A. Kishk , Mohamed-Slim Alouini

In this paper, we study the spectrum usage efficiency by applying wideband methods and systems to the existing analog systems and applications. The essential motivation of this work is to define the prospective coexistence between analog FM…

信息论 · 计算机科学 2012-11-20 Demosthenes Vouyioukas

We show that to lower the sampling rate in a spread spectrum communication system using Direct Sequence Spread Spectrum (DSSS), compressive signal processing can be applied to demodulate the received signal. This may lead to a decrease in…

信息论 · 计算机科学 2012-10-11 Karsten Fyhn , Thomas Arildsen , Torben Larsen , Søren Holdt Jensen

Due to factors such as low population density and expansive geographical distances, network deployment falls behind in rural regions, leading to a broadband divide. Wireless spectrum serves as the blood and flesh of wireless communications.…

Network technologies are traditionally based on wireline solutions. But the introduction of the IEEE 802.11 standards have made a huge impact on the market such that laptops, PCs, printers, cellphones, and VoIP phones, MP3 players in our…

网络与互联网体系结构 · 计算机科学 2014-03-11 Sourangsu Banerji , Rahul Singha Chowdhury

Millimeter-wave (mmWave) frequency bands offer a new frontier for next-generation wireless networks, popularly known as 5G, to enable multi-gigabit communication; however, the availability and reliability of mmWave signals are significantly…

网络与互联网体系结构 · 计算机科学 2018-12-20 Biswa P. S. Sahoo , Chung-Wei Weng , Hung-Yu Wei

Widely deployed wireless network devices use a shared medium to communicate among mobile nodes. WLAN uses virtual carrier sensing mechanism to solve issues like hidden node problem, while this mechanism is vulnerable to DOS attacks e.g.,…

网络与互联网体系结构 · 计算机科学 2018-11-28 Tauseef Jamal , Muhammad Mussadiq Umair , M. Alam

Wireless sensor networks have attracted a lot of interest over the last decade in wireless and mobile computing research community. Applications of these networks are numerous and growing, which range from indoor deployment scenarios in the…

密码学与安全 · 计算机科学 2013-01-23 Jaydip Sen

Security of wireless sensor network (WSN) is always considered a critical issue and has a number of considerations that separate them from traditional wireless sensor network. First, sensor devices are typically vulnerable to physical…

网络与互联网体系结构 · 计算机科学 2012-09-26 Nasrin Sultana , Tanvir Ahmed , A. B. M. Siddique Hossain

Wireless connectivity is essential for industrial production processes and workflow management. Moreover, the connectivity requirements of industrial devices, which are usually long-term investments, are diverse and require different radio…

网络与互联网体系结构 · 计算机科学 2024-03-29 David Candal-Ventureira , Francisco Javier González-Castaño , Felipe Gil-Castiñeira , Pablo Fondo-Ferreiro

As the services and requirements of next-generation wireless networks become increasingly diversified, it is estimated that the current frequency bands of mobile network operators (MNOs) will be unable to cope with the immensity of…

With the technological growth of broadband wireless technology like CDMA and UWB, a lots of development efforts towards wireless communication system and Imaging radar system are well justified. Efforts are also being imparted towards a…

网络与互联网体系结构 · 计算机科学 2007-05-23 Rabindranath Bera , Jitendranath Bera , Sanjib Sil , Sourav Dhar , Debdatta Kandar , Dipak Mondal

Wireless Local Area Networks (WLANs), known as Wi-Fi, have become an essential service in university environments that helps staff, students and guests to access connectivity to the Internet from their mobile devices. Apart from the…

网络与互联网体系结构 · 计算机科学 2020-04-06 Farhana Binte Kamrul Easha , Robert Abbas , Matthew Daley

Direct-sequence spread spectrum (DSSS) has been recognized as an effective jamming resilient technique. However, the effectiveness of DSSS relies on the use of either pre-shared unique secret keys or a bank of public codes, which can be…

信息论 · 计算机科学 2018-03-21 Jay Prakash , Chenxi Liu , Jemin Lee , Tony Q. S. Quek

Dense deployment of base stations (BSs) and multi-antenna techniques are considered key enablers for future mobile networks. Meanwhile, spectrum sharing techniques and utilization of higher frequency bands make more bandwidth available. An…

网络与互联网体系结构 · 计算机科学 2015-06-02 Yanpeng Yang , Ki Won Sung

Wireless sensor networks are often designed to perform two tasks: sensing a physical field and transmitting the data to end-users. A crucial aspect of the design of a WSN is the minimization of the overall energy consumption. Previous…

信息论 · 计算机科学 2014-01-07 Zichong Chen , Juri Ranieri , Runwei Zhang , Martin Vetterli

Current radio systems are currently optimized for capacity and range. However, certain applications of wireless systems require fast and reliable communication over short distances. The challenge of these systems is to communicate with a…

信号处理 · 电气工程与系统科学 2018-11-30 Raja Sattiraju , Jasper Siemons , Mohammad Soliman , Wasim Alshrafi , Fabian Rein , Hans D. Schotten

Wireless systems are getting deployed in many new environments with different antenna heights, frequency bands and multipath conditions. This has led to an increasing demand for more channel measurements to understand wireless propagation…

信息论 · 计算机科学 2016-11-18 Muhammad Nazmul Islam , Byoung-Jo J. Kim , Paul Henry , Eric Rozner
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