Dissertation > Excellent graduate degree dissertation topics show

Study on Study on Context-aware Modeling and Cluster Head Election Algorithm of Cognitive Networks

Author: LuoYouMing
Tutor: ChenZhiKui
School: Dalian University of Technology
Course: Applied Computer Technology
Keywords: Cognitive Network Context Energy balance Cluster election
CLC: TN92
Type: Master's thesis
Year: 2011
Downloads: 37
Quote: 0
Read: Download Dissertation

Abstract


As technology advances, networks are increasingly sophisticated and widely used, the capacity of wireless communication has also been an unprecedented growth, leading to increasingly complex communications network. Its complexity is mainly reflected in three aspects:The first aspect is that the network is heterogeneous; the second aspect is that the networking method is heterogeneous; last aspect is the heterogeneity of the terminal. Faced with such a complex heterogeneous environment, in order to achieve efficient integration of existing technology has clearly not enough, so the academic community proposed the cognitive network (Cognitive Network, CN) concept. Cognitive Network has been widely studied as the development direction of the future network. In this paper, we use the context-aware technology which is one of the key technologies in cognitive network to build a context-aware system model, and the model used marked model to express the context. XML language widely used because of the network, and has the inherent cross-platform advantages, so using XML as a mark model modeling language can effectively make the system has the versatility and cross-platform. This also bring a serious problem, that is, the upper application becomes more trouble when retrieving obtain contextual information, in order to solve this problem, the paper proposes CLISA algorithm, through the keywords semantic extracted in context information, it establishes retrieval, then using virtual context, that is context environment semantics of the keywords in the context information, and Deway encoding can be fast access to relevant information. In the three directions of network optimization based cognitive network research, this article choose the life cycle optimization to research and propose an energy balance of cluster head election based on the context algorithm,, it can be effective calculate the remaining energy on the basis of access to data in the use of CLISA, then use the remaining energy to select cluster head node. The experiments show that the algorithm can effectively balance the network node energy and prolong network lifetime.

Related Dissertations

  1. Context-Dependent Lexical Paraphrasing,TP391.1
  2. The Research of Decoding Algorithm for Statistical Machine Tranlation,TP391.2
  3. A Study of Multi-Path Routing Algorithm of Wireless Sensor Networks Based on Energy Balance,TP212.9
  4. Resource Management Mechanism for QoS in Cognitive Networks,TN915.09
  5. Media convergence Perspective Development of network television,F49
  6. In the conceptual integration theory to analyze humor SMS,H052
  7. An Analysis of the Dynamic Nature of Text-A Systemic-Functional Approach to Discourse Analysis,H052
  8. Venuti’s Foreignization Translation Strategy in the Background of Cultural Context,H315.9
  9. Meaning Theory and Its Contemporary Developing Trend Research,B08
  10. The Study on the "Space Language" in the Furniture Design,TS664.01
  11. Energy-balanced Data Gathering Algorithms in Wireless Sensor Network,TN929.5
  12. Study on the Communication of Mobile TV in the Context of Fragmentation,G206
  13. A Pragmatic Analysis of Verbal Humor in How I Met Your Mother,H313
  14. On Translating Verbal Humor in Hong Lou Meng from the Perspective of Relevance Theory,I046
  15. Virtual showcase for indoor three-dimensional scene quickly build and optimization technology research,TP391.41
  16. Context and adjective translation,H059
  17. Apologies comparative study of Russian and Chinese,H35
  18. Based on conditional random RNA secondary structure prediction algorithm,R346
  19. Research on Etiquette Documents in Context Vision,H152
  20. How to build the TCFL the primary phase of the Chinese language environment,H195
  21. Idioms clarity and context for Chinese high-level English learners understand the impact of non- familiar English idioms,H319

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications
© 2012 www.DissertationTopic.Net  Mobile