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Computers, IEEE Transactions on

Issue 3 • Date March 1997

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Displaying Results 1 - 14 of 14
  • Reviewers List For Special Issue On Mobile Computing

    Publication Year: 1997 , Page(s): 371
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    Freely Available from IEEE
  • Resource conservation in a mobile transaction system

    Publication Year: 1997 , Page(s): 299 - 311
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (276 KB)  

    This paper addresses the problem of providing transactional support for improved data consistency in mobile file access, while paying careful attention to the resource constraints of mobile clients. We present data on resource consumption from an implementation of the isolation-only transaction (IOT) mechanism of the Coda File System. The data shows that the resource conservation techniques used b... View full abstract»

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  • Optimal partitioning of heterogeneous traffic sources in mobile communications networks

    Publication Year: 1997 , Page(s): 312 - 325
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (632 KB)  

    Given n heterogeneous traffic sources which generate multiple types of traffic among themselves, we consider the problem of finding a set of disjoint clusters to cover n traffic sources. The objective is to minimize the total communication cost for the entire system in the context that the intracluster communication is less expensive than the intercluster communication. Different from the general ... View full abstract»

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  • An efficient protocol for call setup and path migration in IEEE 802.6 based personal communication networks

    Publication Year: 1997 , Page(s): 326 - 336
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (340 KB)  

    Recently, DQDB (IEEE 802.6) MAN has been proposed as a component of Personal Communication Networks, in which base stations of wireless infrastructures are connected by a number of DQDBs which in turn are connected via bridges. We propose a protocol for call setup and path migration in a cluster of DQDBs. The protocol uses a link-state-like routing method for path selection and a source-routing-ba... View full abstract»

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  • Mobile computing with the Rover toolkit

    Publication Year: 1997 , Page(s): 337 - 352
    Cited by:  Papers (67)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (328 KB)  

    Rover is a software toolkit that supports the construction of both mobile-transparent and mobile-aware applications. The mobile-transparent approach aims to enable existing applications to run in a mobile environment without alteration. This transparency is achieved by developing proxies for system services that hide the mobile characteristics of the environment from applications. However, to exce... View full abstract»

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  • On-line task migration in hypercubes through double disjoint paths

    Publication Year: 1997 , Page(s): 379 - 384
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (92 KB)  

    Repeated subcube allocation and deallocation in hypercubes tend to cause fragmentation, which can be taken care of by task migration. Earlier task migration dealt with the establishment of a single path from each participating node for transmitting migrated information. The time required for migration with single paths is long, if a large amount of information is moved in hypercubes. This paper co... View full abstract»

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  • Error control and energy consumption in communications for nomadic computing

    Publication Year: 1997 , Page(s): 279 - 289
    Cited by:  Papers (71)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (276 KB)  

    We consider the problem of communications over a wireless channel in support of data transmissions from the perspective of small portable devices that must rely on limited battery energy. We model the channel outages as statistically correlated errors. Classic ARQ strategies are found to lead to a considerable waste of energy, due to the large number of transmissions. The use of finite energy sour... View full abstract»

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  • Causal ordering in distributed mobile systems

    Publication Year: 1997 , Page(s): 353 - 361
    Cited by:  Papers (16)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (260 KB)  

    There is a growing trend towards using mobile computing environment for several applications, and it is important that the mobile systems are given adequate support both at the systems level and at the communication level. Causal ordering is a useful property, particularly in applications that involve human interactions. (Such applications are common in mobile computing environments.) In this pape... View full abstract»

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  • Mobile Computing: When Mobility Meets Computation

    Publication Year: 1997 , Page(s): 257 - 259
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (88 KB)  

    First Page of the Article
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  • Improving NFS performance over wireless links

    Publication Year: 1997 , Page(s): 290 - 298
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (288 KB)  

    NFS is a widely used remote file access protocol that has been tuned to perform well on traditional LANs which exhibit low error rates. Users migrating to mobile hosts would like continued remote file access via NFS. However, low bandwidth and high error rates degrade performance on mobile hosts using wireless links, hindering the use of NFS. We conducted experiments to study the behaviour of NFS ... View full abstract»

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  • Threshold priority policy for channel assignment in cellular networks

    Publication Year: 1997 , Page(s): 367 - 370
    Cited by:  Papers (17)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (84 KB)  

    This paper presents a new policy called the threshold priority policy (TPP) for assigning channels in cellular networks. The performance of TPP is compared with the performance of the well-known cutoff priority policy (CPP) and the nonprioritized complete sharing policy (CSP). Several numerical experiments are done for various values of offered load and portable mobility. The results are compared ... View full abstract»

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  • Implementation and performance evaluation of Indirect TCP

    Publication Year: 1997 , Page(s): 260 - 278
    Cited by:  Papers (60)  |  Patents (44)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (484 KB)  

    With the advent of small portable computers and the technological advances in wireless communications, mobile wireless computing is likely to become very popular in the near future. Wireless links are slower and less reliable compared to wired links and are prone to loss of signal due to noise and fading. Furthermore, host mobility can give rise to periods of disconnection from the fixed network. ... View full abstract»

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  • Roll-forward and rollback recovery: performance-reliability trade-off

    Publication Year: 1997 , Page(s): 372 - 378
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (212 KB)  

    Performance and reliability trade-offs depend on the recovery scheme used in any fault-tolerant system. Gain in performance, using comparable resources, typically requires sacrifice in reliability, and vice-versa. Roll-forward schemes for duplex systems achieve better performance than rollback schemes, without a significant increase in hardware resource requirements. This paper compares two roll-f... View full abstract»

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  • Update algorithm for replicated signaling databases in wireless and advanced intelligent networks

    Publication Year: 1997 , Page(s): 362 - 367
    Cited by:  Papers (6)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (100 KB)  

    In the Personal Communication Networks (PCN), and the Universal Personal Telecommunications (UPT) services and possibly other services offered by the Advanced Intelligent Networks (AIN), customer records for call routing and other signaling functions can be distributed and replicated at multiple sites to improve access delay and system availability. We observe that these applications can tolerate ... View full abstract»

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The IEEE Transactions on Computers is a monthly publication with a wide distribution to researchers, developers, technical managers, and educators in the computer field.

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Meet Our Editors

Editor-in-Chief
Paolo Montuschi
Politecnico di Torino
Dipartimento di Automatica e Informatica
Corso Duca degli Abruzzi 24 
10129 Torino - Italy
e-mail: pmo@computer.org