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Browsing by Subject "Wireless communication systems"

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A 2x2 space-time code for noncoherent ultra wideband (UWB) communication systems with M-PPM and energy detection. (c2016)

El Amine, Ali H. (Lebanese American University, 2016-12-09)

It is all about spectrum, the electromagnetic communication frequency spectrum characterizes the distribution of all the different wireless technologies approved by the Federal Communications Commission (FCC) and their ...
Achieving full transmit diversity for PPM constellations with any number of Antennas via double position and symbol permutations. (c2008)

Baba, Zeina (2011-10-11)

Encoding and decoding techniques present in the literature, mainly designed for radio frequency (RF) applications, face many problems when applied in optical wireless (OW) communications. These schemes seem to have lacks ...
Delay-tolerant codes for the decode-and-forward cooperation in wireless networks. (c2009)

Marmar, Ali Rida H. (2012-03-08)

With the great growth of wireless devices and communication, there is a huge demand for higher data rates. To respond to this growing demand, fourth generation (4G) wireless Local Area Networks (LANs) might adopt cooperation ...
Energy-aware adaptive compression for mobile devices. (c2009)

Maddah, Rakan (Lebanese American University, 2011-10-28)

A single bit transmission over the wireless card can consume 1000 times more energy as compared to a 32-bit CPU computation. This fact is very critical for devices operating on limited battery such as mobile devices. By ...
An energy-aware retransmission model for multimedia communications over wireless networks. (c2010)

Abdallah, Deema Abed Al-Rahman (Lebanese American University, 2011-10-24)

Traditional error recovery schemes such as automatic repeat request (ARQ) and incremental forward error correction (FEC) rely on immediate retransmissions to deal with transmission errors. Such an approach leads to ...
A hybrid cryptosystem based on WEP for 802.11 networks. (c2006)

Horr, Walid Majed (Lebanese American University, 2011-11-18)

Wireless is the next generation networking technology. The security of such technology is very critical because its physical layer is the electro-magnetic waves that can be easily intercepted by anyone. The original ...
IEEE 802.11 wireless mesh network. (c2008)

Khabbaz, Maurice (2011-10-06)

The IEEE 802.11 Medium Access Control (MAC) gained widespread popularity as a layer-2 protocol for Wireless Local Area Networks (WLANs). While the continuous lack of accurate analytical 802.11 MAC models as well as the ...
An improved quorum selection algorithm (IQSA). (c2007)

Younes, Samer (Lebanese American University, 2011-10-20)

As communication becomes more and more an integral part of our day to day lives, so our need to access information increases as well. Mobility is currently one of the most important factors to consider in our aim to ...
A scalable family of unitary and differential space-time codes for ultra wideband communications. (c2014)

Fayad, Karl (2016-05-06)

Higher data rates have always been the main demand ever since the emergence of telecommunications. This quest for faster and more reliable communications has led to the evolution of numerous generations of wired and wireless ...
SDDSR. (c2005)

Kdouh, Wael (Lebanese American University, 2011-09-23)

Mobile ad-hoc networks are becoming more popular as the use of mobile computers is increasing. The biggest challenge faced in such networks is continuous and random change in the topology. Table driven routing protocols ...

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