Filters








32,091 Hits in 5.1 sec

WIRELESS ACCESS AND TERMINAL MOBILITY IN CORBA

KIMMO RAATIKAINEN
2003 International Journal on Wireless & Optical Communications  
The mobility management is based on principles of the current GSM network.  ...  The Object Management Group has recently published the Wireless Access and Terminal Mobility in CORBA standard-Wireless CORBA, for short.  ...  Nokia Mobile Phones has announced that Nokia M2M Gateway [26] will, in a future release, be based on the specification.  ... 
doi:10.1142/s0219799503000112 fatcat:kplpng46bvbdvgvjk64sgctpdm

DESIGN OF DISPERSION FLATTENED AND COMPENSATING FIBERS FOR DISPERSION-MANAGED OPTICAL COMMUNICATIONS SYSTEMS

Le N. Binh, Thanh. L. Huynh, K.-Y. Chin, D. Sharma
2004 International Journal on Wireless & Optical Communications  
Key words: optical fibers; optical fiber dispersion; wavelength division multiplexed optical fiber systems, 40Gb/s transmission systems.  ...  non-zero dispersion fiber (NZ-DF) with minimum of dispersion factor, as well as dispersion compensating fiber (DCF) that allows complete dispersion compensation over entire S-to L-bands of the third communications  ...  In particular for optical communications transmission system that employs wavelength multiplexing optical carriers.  ... 
doi:10.1142/s0219799504000210 fatcat:2p6swne5gvhi5aprijn5yqej7q

PLATO: A Generic Modeling Technique for Optical Packet-Switched Networks

Shun Yao, Biswanath Mukherjee, Sudhir Dixit
2003 International Journal on Wireless & Optical Communications  
However, most past work has concentrated on modeling one single switch, or a network with one specific node architecture [13, 14, 10, 15] .  ...  The analysis of optical packet-switching architectures has received some attention in the literature.  ...  Today's optical links have a line speed as high as 10 Gbps (OC-192) and many optical packet formats have sizes based on IP packets, which is no more than tens of thousand of bits (with optical burst switching  ... 
doi:10.1142/s0219799503000070 fatcat:hotdr454kvdajp46qu3gehfji4

A Review on Inter-Satellite Optical Wireless Communication

Abhishek Sharma, Vishal Kumar, Vipin Gupta
2018 International Journal of Computer Applications  
Inter-satellite optical wireless Communication has been emerged as a revolutionary technology in the field of communication.  ...  Since its induction in early 60's, Is-OWC has revolutionized the communication industry with high sapped data transmission as well as high end security.  ...  efficiency, high precision and above all wireless optical communication doesn't pollute the environment with electromagnetic radiations.  ... 
doi:10.5120/ijca2018916238 fatcat:etohupvmmravddfkgkei3l6asi

A SCHEDULING ALGORITHM IN A CORE OPTICAL ROUTER WITH HETEROGENEOUS TRAFFIC

ROSE QINGYANG HU, ROBERT BEST, YI QIAN, MINGZHOU JIN
2006 International Journal on Wireless & Optical Communications  
One big challenge in designing future large-scale optical systems is packet scheduling for the core optical routers. The optical router is a delay system with packets waiting at its ingress queues.  ...  Research work has been conducted on scheduling optical switches and routers. A scheduling algorithm is proposed in [4, 5] to provide best-effect services in the Birkhoff-von Neumann switch.  ...  Since all 4 matrices are permutation matrices, one ingress edge can only communicate one egress edge in one time slot during the scheduling cycle.  ... 
doi:10.1142/s0219799506000351 fatcat:pfu24ybotrb7la26nhlh5mgf4m

Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Hosam Abd Elrazek Mohamed Ali, El-Sayed Soliman A. Said, Mohamed Ebrahim Yousef
2019 International Journal of Optics  
This paper studies the effect of environmental parameters like rain, fog, haze, snow, and dust on the performance of optical wireless communications using Opti-system program.  ...  Free space optical communication systems are the future of the communication systems which can meet the needs of the end users who are demanding high bandwidths to support high-speed communication.  ...  International Journal of Optics 3 PRBS NRZ Pulse Generator Mach- Zehnder Modulator CW Laser Optical amplifier FSO Channel Optical amplifier Photo detector APD Low Pass Bessel  ... 
doi:10.1155/2019/1828275 fatcat:5eopx5pw7bg3bakzxd4gjzcrui

PERFORMANCE OF UMTS PACKET SERVICE OVER DEDICATED CHANNELS (DCH)

ANTONIO CAPONE, MATTEO CESANA
2003 International Journal on Wireless & Optical Communications  
The efficiency mainly depends on the radio interface and since it is characterized by a great llexihility it is of utmost importance to investigate the effect of different cunligurations on the system  ...  We study the effect of several parameters (spreading factor, code rate, channel setup delay, etc.) on the system capacity by means of the delay-throughput curves.  ...  , and i s also considered by ITU (International Telecommunication Union) among the standards for the IMT- 2000 (International Mobile Telephone standard 2000) fam- ily [SI,  ... 
doi:10.1142/s0219799503000100 fatcat:57pytsv4czgytbuv3db3gv6r6i

Dynamic Routing of Bandwidth Guaranteed Connections in MPLS Networks

Antonio Capone, Luigi Fratta, Fabio Martignon
2003 International Journal on Wireless & Optical Communications  
Finding a path in the network for a new incoming connection able to guarantee some quality parameters such as bandwidth and delay is the task of QoS routing techniques developed for new IP optical networks  ...  based on label forwarding techniques such as Generalized Multiprotocol Label Switching (GMPLS).  ...  The upcoming high-speed optical networks are expected to support a wide variety of communication-intensive real-time multimedia applications.  ... 
doi:10.1142/s0219799503000069 fatcat:y6hxrfbb3zcsvhkxaey4ygk7ee

DESIGN AND ANALYSIS OF QUAD-BAND WILKINSON POWER DIVIDER

HUSSAM JWAIED, FIRAS MUWANES, NIHAD DIB
2007 International Journal on Wireless & Optical Communications  
Then, four isolation resistors are added (one at each end of the four transmission line sections).  ...  The input admittance seen by one of the output ports is given by: where (Z odd in ) −1 = 2G 4 + Y 4 2G 3 + Y 3 2G 2 +Y 2 2G 1 +j(Y 2 tan(θ 2 )−Y 1 cot(θ 1 ) Y 2 +Y 1 cot(θ 1 ) tan(θ 2 )+j2G 1 tan(θ 2 )  ... 
doi:10.1142/s0219799507000680 fatcat:34ral47qxzdibkgg7yzos4tbhe

Design of Bandwidth Adjustment Receiver for Optical Wireless Communication

M F L Abdullah
2012 International Journal on Electrical Engineering and Informatics  
This paper presents the concerned with a systematic approach to the design of receiver for indoor optical wireless communication.  ...  Integrating microwave electronics and optics, it is possible to provide wideband communication services but it is well known that the signal level in an optical wireless receiver is weakest at the front  ...  For application interest, PIN photodiode is preferably in optical wireless communication system.  ... 
doi:10.15676/ijeei.2012.4.3.12 fatcat:uimuywamhzh7xl4jgmrjxjigdi

An Algorithm of Wireless Sensor Network Based on Free Space Optical Communication

Na Zhang
2017 International Journal of Online Engineering (iJOE)  
In a word, it has significant role in network communication. </span></span></p>  ...  The </span><span style="font-size: medium;"><span style="font-family: 宋体;">OEEMRP protocol (Optical Efficient Energy Multi-Path Routing Protocol) is also proposed.  ...  Based on Free Space Optical Communication(c) Cluster head proportion p is 0.2  ... 
doi:10.3991/ijoe.v13i07.7292 fatcat:jo5i37cpvzg77ljxtdjuqecvru

TOPOLOGY CONTROL IN AD HOC NETWORKS: A MAC LAYER SOLUTION

FLAMINIO BORGONOVO, LUCA CAMPELLI, MATTEO CESANA
2006 International Journal on Wireless & Optical Communications  
The proposed algorithm aims at maintaining the minimum number of bidirectional neighbors of any wireless terminal very close to a certain connectivity threshold.  ...  The correctness of the algorithm is evaluated through detailed simulation and several test on the impact of different algorithm parameters are carried out in static network scenarios.  ...  Introduction Wireless ad hoc networks are attracting much attention within the researcher community all over the world.  ... 
doi:10.1142/s0219799506000405 fatcat:mja2xiiwebhmrgutab3i3dwmnq

RESISTANCE LOADED PLANAR ANTENNA WITHIN A RECTANGULAR PARALLELEPIPED CAVITY FOR UWB SYSTEM

MITSUO TAGUCHI, TAKESHI OHASHI, KAZUMASA TANAKA
2006 International Journal on Wireless & Optical Communications  
The input impedance and radiation characteristics of this antenna is calculated by using the electromagnetic simulator "IE3D" based on the Method of Moment [4] for shortening the calculation time.  ...  of current distribution of this antenna and the transmission loss characteristics between the transmitting and receiving antennas are calculated by using the electromagnetic simulator "Fidelity" based on  ... 
doi:10.1142/s0219799506000478 fatcat:rtcbfltdcfc2zlfqebaf2nfuma

USING UWB MEASUREMENTS FOR STATISTICAL ANALYSIS OF THE RANGING ERROR IN INDOOR MULTIPATH ENVIRONMENT

BARDIA ALAVI, KAVEH PAHLAVAN, NAYEF ALSINDI, XINRONG LI
2006 International Journal on Wireless & Optical Communications  
Accuracy of indoor geolocation systems relies on the strength and TOA of the direct path (DP) in the channel profile.  ...  Based on UWB measurements in a typical office building, we introduce empirical models for the path-loss and TOA of the DP.  ...  Introduction Ultra-wideband (UWB) technology has been one of the major developments in recent years in wireless industry [Opp04] [Ghav04] .  ... 
doi:10.1142/s0219799506000454 fatcat:ad2y6vg735g3rjlvoizbu5wxlm

Measure of Wireless PAN based on the standard IEEE 802.15 of optical wireless communication technologies for the development of bluetooth as important consideration

Jyoti Dadwal, Bhubneshwar Sharma
2016 International Journal of Advances in Scientific Research  
Development of WCTP was initiated by the Messaging Standards Committee and submitted to the Radio Paging Community.  ...  The PCIA (Personal Communications Industry) accepted the first full release and adopted the protocol as a PCIA standard. The current version is WCTP 1.3.  ...  Introduction Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR), and ultraviolet (UV) band.  ... 
doi:10.7439/ijasr.v2i2.2752 fatcat:kmrnk6qspzdlffp7nsyfap723y
« Previous Showing results 1 — 15 out of 32,091 results