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Efficient Mesh Division and Differential Information Coding Schemes in Broadcast Cognitive Pilot Channel

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Abstract

Driven by the inevitable trends of heterogeneous network convergence and cooperation technology innovations have been put forward to improve the spectrum usage efficiency, such as the Cognitive Radio (CR) technology. As one of the candidate solutions for heterogeneous network information delivery for dynamic spectrum sharing in CR environment, the Cognitive Pilot Channel (CPC) techniques are proposed, which greatly improve the efficiency and accuracy of network information delivery to User Equipments. Based on the assumption that the geographical region is divided into meshes and covered by different Radio Access Technologies (RATs), an Efficient Mesh Division (EMD) scheme is brought forward by taking into account both the error probability parameter in the Global Position System localization shift scenario and the information loss ratio parameter in the multi-RATs overlapped scenario. Besides, the impacts of these parameters to the EMD scheme are analyzed and evaluated by using the Analytic Hierarchy Process and Grey Relational Analysis algorithms. Furthermore, in order to improve the efficiency of network information coding among different meshes, the Differential Information Coding (DIC) scheme is put forward, which includes the Homogeneous Meshes Grouping scheme that is based on the frequency occupancy graph and the basic mesh selection strategy with the most popular commonality using image processing techniques. In virtue of the DIC scheme, the duplicate network information in homogeneous meshes is greatly reduced and information coding efficiency is improved by quantizing only the differential information against the basic mesh. Finally, contributions of the proposed EMD and DIC schemes reside in the improvements of the accuracy and efficiency of heterogeneous network information delivery via broadcast CPC channel, which are proved by numerous results.

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Authors and Affiliations

  1. Wireless Technology Innovation Institute (WTI) and Key Laboratory of Universal Wireless Communications Ministry of Education, Information and Telecommunication Engineering of Beijing University of Posts and Telecommunications (BUPT), Haidian Dist. Xitucheng Rd, 100876, Beijing, People’s Republic of China

    Qixun Zhang, Zhiyong Feng, Guoyi Zhang, Qian Li & Ping Zhang

Authors
  1. Qixun Zhang
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  2. Zhiyong Feng
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  3. Guoyi Zhang
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  4. Qian Li
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  5. Ping Zhang
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Correspondence to Qixun Zhang.

Additional information

This work was sponsored by E3 project (FP7-ICT-2007-216248), National Basic Research Program of China (2009CB320400), NSFC (60632030, 60832009) and National Key Technology R&D Program of China (2009ZX03007-004, 2010ZX03003-001).

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Zhang, Q., Feng, Z., Zhang, G. et al. Efficient Mesh Division and Differential Information Coding Schemes in Broadcast Cognitive Pilot Channel. Wireless Pers Commun 63, 363–392 (2012). https://doi.org/10.1007/s11277-010-0138-x

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