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.
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Showing 1 to 20 of 155 for “"Cross-layer"”.
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Unified cross-layer framework: a generic platform for cross-layer design experimentation
Cross-layer designs in wireless network systems have been an active research area. Numerous cross-layer schemes are proposed to improve overall system performance by allowing information to be shared and controlled across protocol layers. However, much of the previous research work in this area is …
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CROSS-LAYER ADAPTATION OF SERVICE-BASED SYSTEMS
… and the application context. Given the complex layered structure, and the heterogeneous and dynamic execution context of such systems, adaptation is not at all a trivial task. The importance of the problem of adaptation has been widely recognized in the community of software services and …
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Approximate computing: An integrated cross-layer framework
… of this thesis is to develop an integrated cross-layer approach to approximate computing, and to thereby establish its applicability to a broader range of applications. The proposed framework comprises of three key components: (i) At the circuit level, systematic approaches to design …
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Cross -Layer Energy -Efficient Mobile System Design
… energy savings can be achieved by using a cross-layer adaptive system than by using discrete adaptations in single layers of the system.
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Cross-layer scheduling in cloud computing systems
… platforms. In this thesis, we propose a cross-layer scheduling framework that bridges the application level scheduler with the routing level scheduler (SDN). We realize our framework in a batch-processing framework (Hadoop) and a stream-processing framework (Storm [2]). Our experimental …
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Capabilities for cross-layer micro-service security
… the Principle of Least Privilege (PoLP) at every layer of the stack: the interface between the operating system and the hardware, the system call interface, and within individual applications. We implement the PoLP through layer specific capabilities by mapping the security challenges present in …
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Cross-Layer Optimization: System Design and Simulation Methodologies
… protocol stack is inflexible as various protocol layers communicate in a strict manner. In such a case the layers are designed to operate under the worst conditions as opposed to adapting to changing conditions. This leads to inefficient use of spectrum and energy. Adaptation represents the …
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Cross-layer design for wireless sensor relay networks
… with respect to the energy efficiency and the cross-layer design in wireless sensor networks. Motivated by the multipath utilization and transmit diversity capability of space-time block codes (STBC), a new energy efficient cooperative routing algorithm using the STBC is proposed. Furthermore, …
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Cross-layer design of random access wireless networks
… on its interactions with other protocols across different layers, including physical layer, transport layer, networking layer and application layer. We exploit several cross-layer interactions to optimize performance in random access based wireless networks. We address three design and …
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Cross-layer protocol interactions in heterogeneous data networks
(cont.) TCP timeout backoff and MAC layer retransmissions, are studied in detail. The results show that the system performance is a balance of idle slots and collisions at the MAC layer, and a tradeoff between packet loss probability and round trip time at the transport layer. Finally, we consider …
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Cross-Layer Platform for Dynamic, Energy-Efficient Optical Networks
… ultrahigh energy efficiencies. In this thesis, a cross-layer communications platform is proposed to enable greater intelligence and functionality on the physical layer. Providing the optical layer with advanced networking capabilities will facilitate the dynamic management and optimization of …
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Cross-layer optimizations in multi-hop ad hoc networks
… requires cooperation between different protocol layers (MAC, routing, transport). In particular, MAC and routing protocols could be considered mutually cooperative protocol layers. When a route is established, the exposed and hidden terminal problems at MAC layer may decrease the end-to-end …
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Cross-layer RaCM design for vertically integrated wireless networks
Wireless local and metropolitan area network (WLAN/WMAN) technologies, more specifically IEEE 802.11 (or wireless fidelity, WiFi) and IEEE 802.16 (or wireless interoperability for microwave access, WiMAX), are well-suited to enterprise networking since wireless offers the advantages of rapid …
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A delay-constrained cross-layer model using network coding
… one wireless link is a game changer. Network layer architecture is predicated on the assumption that the lower layers are reliable, but this comes at a high cost in terms of data rate on a band-limited, lossy wireless channel. This cost is tolerable over one underutilized link, but when the …
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Cross-Layer Game Theoretic Mechanism for Tactical Mobile Networks
… (CNs). This thesis provides a game theoretic cross-layer mechanism that can be used to control SDRs and CRs. We have constructed an upper-layer Topology Control (TC) game, which decides which links each node uses. A TDMA algorithm which we have adapted is then run on these links. The links and …
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Cross-layer design for network performance optimization in wireless networks
<p>"In this dissertation, I use mathematical optimization approach to solve the complex network problems. Paper l and paper 2 first show that ignoring the bandwidth constraint can lead to infeasible routing solutions. A sufficient condition on link bandwidth is proposed that makes a routing …
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Cross-Layer Capacity Optimization In OFDMA Systems: WiMAX And LTE
… and subscriber's satisfaction is proposed. A cross-layer optimization design for subchannel, for Wimax, and physical resource block (prb), for lte, and power allocations with the objective of maximizing the capacity (in bits/symbol/hz) subject to fairness parameters and qos requirements as …
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Reducing Transformer Key-Value Cache Size with Cross-Layer Attention
… sharing key and value heads between adjacent layers, yielding a new attention design we call Cross-Layer Attention (CLA). With CLA, we find that it is possible to reduce the size of the KV cache by another while maintaining nearly the same accuracy as unmodified MQA. In experiments training …
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