Novel spectrum sharing strategy based on QoS support in cognitive vehicular network

Lei ZHANG; Tao LUO; Wei LIU

doi:1000-436X(2011)11-0159-09

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Novel spectrum sharing strategy based on QoS support in cognitive vehicular network

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- Novel spectrum sharing strategy based on QoS support in cognitive vehicular network
- Journal on Communications Vol. 32, Issue 11, Pages: 159-167(2011)
- 作者机构：
  
  1. 泛网无线通信教育部重点实验室，北京100876
  2. 北京邮电大学信息与通信工程学院，北京100876
  3. 中国电子科技集团公司第二十研究所，陕西西安 710068
- 作者简介：
- 基金信息：
- DOI：1000-436X(2011)11-0159-09
  CLC： TP393
- Online First：2011-11，
  
  Published：25 November 2011
- 稿件说明：
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Lei ZHANG, Tao LUO, Wei LIU. Novel spectrum sharing strategy based on QoS support in cognitive vehicular network[J]. Journal on Communications, 2011, 32(11): 159-167.
DOI：

Lei ZHANG, Tao LUO, Wei LIU. Novel spectrum sharing strategy based on QoS support in cognitive vehicular network[J]. Journal on Communications, 2011, 32(11): 159-167. DOI： 1000-436X(2011)11-0159-09.

摘要

构建了基于认知无线电的新型车载网络，并提出基于安全业务服务质量(QoS)保障的两步式频谱共享策略：多认知小区间的频谱分配和单认知小区内的频谱共享。仿真结果表明，提出的GNBS(generalized nash bargaining solution)分配方案综合考虑了系统的公平性和总效用，可获得明显大于最大化最小方案的系统和速率，以及明显优于最大化和速率方案的多认知小区间的公平性；GNBS方案可以根据多小区间频谱需求的差异性来动态调节资源分配的比例，有效地实现了需求非对称的多小区间频谱资源的最优化配置；此外，单小区内的协作频谱共享机制，使得协作双方均获得了优于非协作方案的系统效用，有效地提高了系统吞吐量以及认知OBU间的公平性。

Abstract

A two-step spectrum sharing strategy consisting of inter-cell allocation and intra-cell allocation was developed to guarantee the system quality of service(QoS)in the cognitive vehicular network(CVN).Simulation results indicate that the proposed GNBS scheme considering both the fairness and utility can obtain larger transmission rate than Max-min scheme and achieve much better fairness than Max-rate scheme.Considering the difference of spectrum requirements between cognitive cells

GNBS scheme can allocate the spectrum resource dynamically in a weighted fairness manner.Furthermore

the cognitive cooperative spectrum sharing scheme outperforms than the non-cooperative scheme

and it can greatly improve the system utility and fairness between OBU than the non-cooperative schemes.

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references

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