Results 91 to 100 of about 357,020 (320)

IP-based NGNs and Interconnection: The Debate in Europe [PDF]

open access: yes
Historically, interconnection in the world of the Internet has been approached significantly differently from interconnection in the fixed Public Switched Telephone Network (PSTN) and the mobile Public Land Mobile Network (PLMN).
J. Scott MARCUS
core  

DiffServ resource management in IP-based radio access networks [PDF]

open access: yes, 2001
The increasing popularity of the Internet, the flexibility of IP, and the wide deployment of IP technologies, as well as the growth of mobile communications have driven the development of IP-based solutions for wireless networking. The introduction of IP-
Heijenk, Geert   +3 more
core   +1 more source

Efficient algorithm for mobile multicast using anycast group

open access: yes, 2001
The authors present a novel and efficient multicast algorithm that aims to reduce delay and communication cost for the registration between mobile nodes and mobility agents and solicitation for foreign agent services based on the mobile IP.
Jia, W., Kaiser, J., Zhou, Wanlei
core   +1 more source

Unveiling Energy Loss Mechanisms to Empower Ternary Organic Solar Cells with over 20% Efficiency: A Systematic Oligomeric Approach

open access: yesAdvanced Materials, EarlyView.
This study designs modular oligomeric donors (5BDD, 5BDD‐F, 5BDT‐F, 5BDT‐Cl) for ternary OSCs, achieving PCEs >20%. By systematically tuning energy levels, we reveal material compatibility, not HOMO alignment, drive VOC enhancement, suppress ACQ and reduce energy loss, offering new design principles for high‐efficiency OSCs.
Hao Xia   +9 more
wiley   +1 more source

SIM: a secure IP protocol for MANET

open access: yesTongxin xuebao, 2013
According to the core logic of IP Sec, a secure IP protocol was proposed for Mobile Ad Hoc network. Security deal to the packets in and out of the network protocol stack was done by adding a transparent secure layer between trans-port-layer and link ...
Rong-sen LI, Wen-hua DOU
doaj   +2 more sources

Improving Management Performance of P2PSIP for Mobile Sensing in Wireless Overlays

open access: yesSensors, 2013
Future wireless communications are heading towards an all-Internet Protocol (all-IP) design, and will rely on the Session Initiation Protocol (SIP) to manage services, such as voice over IP (VoIP).
José María Pousada-Carballo   +4 more
doaj   +1 more source

Location management and multimedia communication service based on mobile IP and cellular IP network [PDF]

open access: yes
[[abstract]]Wireless communication that provides voice only is not sufficient to support the necessity of user. It is an important feature of future wireless communication to offer this capability through mobile Internet. Mobile IP allows mobile hosts to
王英宏
core   +1 more source

Conjugation Pathway of Benzobisoxazoles in Polymer Donors Mediates the Charge Management and Enables Organic Solar Cells with Record Certified Efficiency

open access: yesAdvanced Materials, EarlyView.
Herein, the conjugation pathway isomerism of the benzobisoxazole (BBO) building block is systematically compared, by which a certified efficiency of 19.1% is obtained in corresponding all‐polymer solar cells. Abstract Charge management plays a pivotal role in achieving high‐performance bulk heterojunction (BHJ) organic solar cells (OSCs). In this study,
Miao Liu   +14 more
wiley   +1 more source

An Analysis of Performance in a Hierarchical Structured Vehicular Ad Hoc Network

open access: yesInternational Journal of Distributed Sensor Networks, 2014
With the rapid development of vehicle technology and wireless communication technology, a vehicular ad hoc network (VANET) has come into sight as a vehicular application of the well-known mobile ad hoc networks (MANETs).
Wanting Zhu   +3 more
doaj   +1 more source

Development of PAN (personal area network) for Mobile Robot Using Bluetooth Transceiver [PDF]

open access: yes, 2003
In recent years, wireless applications using radio frequency (RF) have been rapidly evolving in personal computing and communications devices. Bluetooth technology was created to replace the cables used on mobile devices.
Abu Bakar, J.   +4 more
core  

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