The Experts below are selected from a list of 645 Experts worldwide ranked by ideXlab platform
C Johnston - One of the best experts on this subject based on the ideXlab platform.
-
watmnet a prototype wireless atm system for multimedia personal communication
IEEE Journal on Selected Areas in Communications, 1997Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless asynchronous transfer mode network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mb/s, using low-power 2.4 GHz industrial, scientific, and medical (ISM)-band modems. Wireless network protocols at the portable terminal and base station interfaces support available bit rate (ABR), variable bit rate (VBR), and constant bit rate (CBR) transport services compatible with ATM using a dynamic time-division multiple-access/time-division duplex (TDMA/TDD) MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. In the first stage of the prototype, the application-level API is TCP/UP over ATM ABR service class using AAL5. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control, and mobility signaling for handoff, Selected network-based multimedia/video applications requiring moderate bit-rates (/spl sim/0.5-1 Mb/s) in the ABR mode have been successfully demonstrated on the laptop PC.
-
watmnet a prototype wireless atm system for multimedia personal communication
International Conference on Communications, 1996Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless ATM network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mbps, using low-power 2.4 GHz ISM-band modems. Wireless network protocols at the portable terminal and base station interfaces support ABR, VBR and CBR transport services compatible with ATM using a dynamic TDMA/TDD MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control and mobility signaling for handoff. Selected network-based multimedia/video applications operating at moderate bit-rates (-0.5-1 Mbps) in ABR/AALS/TCP mode have been successfully demonstrated on the laptop PC.
Dipankar Raychaudhuri - One of the best experts on this subject based on the ideXlab platform.
-
watmnet a prototype wireless atm system for multimedia personal communication
IEEE Journal on Selected Areas in Communications, 1997Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless asynchronous transfer mode network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mb/s, using low-power 2.4 GHz industrial, scientific, and medical (ISM)-band modems. Wireless network protocols at the portable terminal and base station interfaces support available bit rate (ABR), variable bit rate (VBR), and constant bit rate (CBR) transport services compatible with ATM using a dynamic time-division multiple-access/time-division duplex (TDMA/TDD) MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. In the first stage of the prototype, the application-level API is TCP/UP over ATM ABR service class using AAL5. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control, and mobility signaling for handoff, Selected network-based multimedia/video applications requiring moderate bit-rates (/spl sim/0.5-1 Mb/s) in the ABR mode have been successfully demonstrated on the laptop PC.
-
watmnet a prototype wireless atm system for multimedia personal communication
International Conference on Communications, 1996Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless ATM network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mbps, using low-power 2.4 GHz ISM-band modems. Wireless network protocols at the portable terminal and base station interfaces support ABR, VBR and CBR transport services compatible with ATM using a dynamic TDMA/TDD MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control and mobility signaling for handoff. Selected network-based multimedia/video applications operating at moderate bit-rates (-0.5-1 Mbps) in ABR/AALS/TCP mode have been successfully demonstrated on the laptop PC.
Alexander Stoyenko - One of the best experts on this subject based on the ideXlab platform.
-
Traffic Reshaping in Packet-switched virtual-circuit Fixed-Packet Networks
2008Co-Authors: Sergey Gorinsky, Sanjoy Baruah, Alexander StoyenkoAbstract:Impact of traffic reshaping on providing deterministic guarantees of timely data delivery in packet-switched virtual-circuit fixed-packet networks of an arbitrary topology is investigated. Two types of traffic smoothing are studied: global reshaping (when traffic on all network connections is smoothed) and local reshaping (when the traffic specification is changed only for a single connection). The paper demonstrates under which conditions and to which degree reshaping should be applied and derives optimal values of the traffic model parameters
-
Traffic Reshaping in Packet-switched virtual-circuit Fixed-Packet Networks
1996Co-Authors: Sergey Gorinsky, Sanjoy Baruah, Alexander StoyenkoAbstract:Impact of traffic reshaping on providing deterministic guarantees of timely data delivery in packet-switched virtual-circuit fixed-packet networks of an arbitrary topology is investigated. Two types of traffic smoothing are studied: global reshaping (when traffic on all network connections is smoothed) and local reshaping (when the traffic specification is changed only for a single connection). The paper demonstrates under which conditions and to which degree reshaping should be applied and derives optimal values of the traffic model parameters. 1 Introduction As multimedia network applications are quickly growing in their variety and resource requirements, timely data delivery in computer networks gains larger and larger importance. Since even an insignificant loss of transferred information can be unacceptable for such applications, providing deterministic guarantees of network behavior became a subject of intensive research [6]. The general solution is to use connection admission c..
D. Kandlur - One of the best experts on this subject based on the ideXlab platform.
-
local remote forwarding decision in switched data link subnetworks
"Local Remote" Forwarding Decision in Switched Data Link Subnetworks, 1996Co-Authors: Y. Rekhter, D. KandlurAbstract:The IP architecture assumes that each Data Link subnetwork is labeled with a single IP subnet number. A pair of hosts with the same subnet number communicate directly (with no routers); a pair of hosts with different subnet numbers always communicate through one or more routers. As indicated in RFC1620, these assumptions may be too restrictive for large data networks, and specifically for networks based on switched virtual circuit (SVC) based technologies (e.g. ATM, Frame Relay, X.25), as these assumptions impose constraints on communication among hosts and routers through a network. The restrictions may preclude full utilization of the capabilities provided by the underlying SVC-based Data Link subnetwork. This document describes extensions to the IP architecture that relaxes these constraints, thus enabling the full utilization of the services provided by SVC-based Data Link subnetworks.
-
"Local/Remote " Forwarding Decision in switched Data Link Subnetworks
1996Co-Authors: Y. Rekhter, Cisco Systems, D. KandlurAbstract:This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. The IP architecture assumes that each Data Link subnetwork is labeled with a single IP subnet number. A pair of hosts with the same subnet number communicate directly (with no routers); a pair of hosts with different subnet numbers always communicate through one or more routers. As indicated in RFC1620, these assumptions may be too restrictive for large data networks, and specifically for networks based on switched virtual circuit (SVC) based technologies (e.g. ATM, Frame Relay, X.25), as these assumptions impose constraints on communication among hosts and routers through a network. The restrictions may preclude full utilization of the capabilities provided by the underlying SVC-based Data Link subnetwork. Thi
P Narasimhan - One of the best experts on this subject based on the ideXlab platform.
-
watmnet a prototype wireless atm system for multimedia personal communication
IEEE Journal on Selected Areas in Communications, 1997Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless asynchronous transfer mode network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mb/s, using low-power 2.4 GHz industrial, scientific, and medical (ISM)-band modems. Wireless network protocols at the portable terminal and base station interfaces support available bit rate (ABR), variable bit rate (VBR), and constant bit rate (CBR) transport services compatible with ATM using a dynamic time-division multiple-access/time-division duplex (TDMA/TDD) MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. In the first stage of the prototype, the application-level API is TCP/UP over ATM ABR service class using AAL5. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control, and mobility signaling for handoff, Selected network-based multimedia/video applications requiring moderate bit-rates (/spl sim/0.5-1 Mb/s) in the ABR mode have been successfully demonstrated on the laptop PC.
-
watmnet a prototype wireless atm system for multimedia personal communication
International Conference on Communications, 1996Co-Authors: Dipankar Raychaudhuri, L J French, R Siracusa, Subir Biswas, Ruixi Yuan, P Narasimhan, C JohnstonAbstract:A prototype microcellular wireless ATM network (WATMnet) capable of providing integrated multimedia communication services to mobile terminals is described in this paper. The experimental system's hardware consists of laptop computers (NEC Versa-M) with WATMnet interface cards, multiple VME/i960 processor-based WATMnet base stations, and a mobility-enhanced local-area ATM switch. The prototype wireless network interface cards operate at peak bit-rates up to 8 Mbps, using low-power 2.4 GHz ISM-band modems. Wireless network protocols at the portable terminal and base station interfaces support ABR, VBR and CBR transport services compatible with ATM using a dynamic TDMA/TDD MAC protocol for channel sharing and data link control (DLC) protocol for error recovery. A custom wireless control protocol is also implemented between the portable and base units for support of radio link related functions such as user registration and handoff. All network entities including the portable, base and switch use a mobility-enhanced version of ATM ("Q.2931+") signaling for switched virtual circuit (SVC) connection control functions, including handoff. Early experiments with the WATMnet prototype have been conducted to validate major protocol and software aspects, including DLC, wireless control and mobility signaling for handoff. Selected network-based multimedia/video applications operating at moderate bit-rates (-0.5-1 Mbps) in ABR/AALS/TCP mode have been successfully demonstrated on the laptop PC.
