Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 37 for “"access protocol"”.
-
A distributed multimedia repository : access protocol design and implementation
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
-
Development of a Random Time-Frequency Access Protocol for M2M Communication
… and development of the random time-frequency access protocol in Machine-to-Machine (M2M) communication systems and covers different aspects of the data collision problem in these systems.<br/><br/>The randomisation algorithm, used to access channels in the frequency domain, represents the key …
-
Detection of Lightweight Directory Access Protocol Query Injection Attacks in Web Applications
<p>The Lightweight Directory Access Protocol (LDAP) is a common protocol used in organizations for Directory Service. LDAP is popular because of its features such as representation of data objects in hierarchical form, being open source and relying on TCP/IP, which is necessary for Internet access. …
-
DMACS: a media access protocol for single-hop wavelength division multiplexed lightwave networks
This thesis proposes a new media access protocol for local area and metropolitan area all-optical networks employing wavelength division multiplexing (WDM). Through WDM, multiple channels are created on a single fiber, and an aggregate network bandwidth far greater than the peak electronic …
-
Performance study on a dual prohibition Multiple Access protocol in mobile Ad Hoc and Wireless Mesh networks
… networks need a mechanism to regulate the access on the transmission medium. Medium Access Control (MAC) protocols control access to the shared communication medium so that it can be used efficiently. In this thesis, we first describe the collision-controlled Dual Prohibition Multiple …
-
Random Access Satellite Communication in the Presence of Interference
This thesis explores a random access service for satellites with the possibility of unintentional or intentional interference. Previous work does not address large bandwidth-delay product systems and interference. This thesis combines the challenges of each, developing a methodology for modeling …
-
Cross-layer design of random access wireless networks
… for wireless networks. Wireless medium access control (MAC) has to be specifically designed to resolve contention in the presence of interference. As a result, an important technique, the random access protocol, has emerged to address the contention issue. This protocol is the essential …
-
A Performance Analysis of a CSMA Multihop Packet Radio Network
… terminals in the network along with the random access protocol used. Researchers have been unable to model a packet radio network in its most general form. In this project, a model is developed for specific topologies of a packet radio network with a given random access protocol. The sponsor of …
-
Rethinking Storage System Design in Distributed NVRAM+RDMA Clusters
… high-performance and strongly consistent data access protocol, new communication abstractions, and QoS controls. We present Telepathy, a novel data access protocol for distributed key-value storage systems. Telepathy supports replicated data storage for fault tolerance and guarantees strong …
-
A Slotted Ring Test Bed for the Study of ATM Network Congestion Management
… to incorporate a modified form of the ORWELL protocol to control media access. The media access protocol is analysed to give a model for maximum throughput and reset interval under various traffic distributions. The results from the models are compared with measurements carried out on the …
-
Dynamic collision reduction protocol for ultra-wide bandwidth multiple access networks
… of the dynamic collision reduction (DCR) protocol, a multiple access protocol that requires frame synchronization. At the physical-layer, we develop the optimal neighbor detector for ultra-wide bandwidth (UWB) signaling in a dense multipath environment with delay uncertainty. The detector …
-
Versioning of Web service interfaces
… the baseline standards like SOAP (Simple Object Access Protocol), WSDL (Web Service Description Language), and UDDI (Universal Discovery, Description and Integration). This thesis examines versioning as an additional specification. It discusses the Web Service enabled programming environment by …
-
Reengineering PhysNet in the uPortal framework
… With the advent of the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) and Open Digital Libraries (ODL), lightweight protocols show a promising future in promoting DL interoperability. Furthermore, DL is envisaged as a network of independent components working collaboratively …
-
Performance evaluation of multicomputer networks for real-time computing
… systems. FIFO, TDM, and token passing link access protocols and several queueing priorities are studied to measure their effect on the system’s performance. Finally, the contribution of the message parameters to the overall system delay is discussed. Existing analytic models are extended to …
-
Security threats to the MAC-layer in wireless networks
Medium access control (MAC) protocol security is important in wireless networks due to the lack of physical access control that normally exists in wired networks in the form of connecting a cable. Most efforts in standards organizations and academic research focus on the requirements of …
-
Distance-1 constrained channel assignment in single radio wireless mesh networks
… addresses channel assignment and random medium access design for single-radio multi-channel mesh networks. Two prior approaches include: (i) designing MAC protocols that dynamically select channels based on local information and (ii) partitioning the mesh into subnetworks with different channels …
-
Opportunistic Random Media Access in WLANs
<p>This thesis proposes a new medium access protocol for IEEE 802.11 wireless local area networks, which is called opp01tunistic medium access. The protocol changes the media access opportunities of nodes by adjusting the contention window dynamically according to the different bit rates. Thereby, …
-
Directoryless shared memory architecture using thread migration and remote access
… cache coherence using distributed directory protocols, which are extremely difficult and error-prone to implement and verify. Private caches with directory-based coherence also provide suboptimal performance when a thread accesses large amounts of data distributed across the chip: the data …
-
Deterministic SpaceWire Networks
SpaceWire-D is an extension to the SpaceWire protocol that adds deterministic capabilities over existing equipment. It does this by using time-division multiplexing, controlled by the sequential broadcasting of time-codes by a network manager. A virtual bus abstraction is then used to divide the …
-
Medium Access Control and Adaptive Transmission Techniques in Wireless Networks
… techniques. Enabling this adaptation requires protocols for information exchange as well as mathematical tools to optimize the controllable parameters. In this dissertation, we provide insights into such protocols and mathematical tools that target efficient utilization of the wireless …
Page 1 of 2