2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)最新文献_第4页

Bandwidth price optimization for D2D communication underlaying cellular networks 基于蜂窝网络的D2D通信带宽价格优化

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934894

H. Kebriaei, B. Maham, D. Niyato

引用次数: 4

On the use of device-to-device communications for QoS and data rate enhancement in LTE public safety networks 在LTE公共安全网络中使用设备对设备通信来提高QoS和数据速率

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934892

E. Yaacoub

引用次数: 18

Q-CE: Self-organized Cognitive Engine based on Q-learning Q-CE:基于q学习的自组织认知引擎

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934886

Ali H. Mahdi, Zeeshan Ansar, Stephen S. Mwanje, O. Artemenko, A. Mitschele-Thiel

{"title":"Q-CE: Self-organized Cognitive Engine based on Q-learning","authors":"Ali H. Mahdi, Zeeshan Ansar, Stephen S. Mwanje, O. Artemenko, A. Mitschele-Thiel","doi":"10.1109/WCNCW.2014.6934886","DOIUrl":"https://doi.org/10.1109/WCNCW.2014.6934886","url":null,"abstract":"One of the main challenges in Cognitive Radio Networks (CRNs) is that the dynamic radio environment affects the Quality of Service (QoS) requirements of Secondary Users (SUs). Another challenge is how to predict Primary Users (PUs) activities over licensed channels, to avoid interfering with PUs. So, there is a need to implement a Cognitive Engine (CE) as a self-organized entity in a CR that overcomes those challenges. In our previous studies, an algorithm called Adaptive Discrete Particle Swarm Optimization (ADPSO) combined with Case-Based Reasoning (CBR) has been proposed for CE. ADPSO selects the optimal configurations when an unknown environment is countered while CBR allows usage of previous knowledge in an environment that has been previously observed. CBR however depends on a single observation of the previous state and gives inaccurate results where an individual states' performance changes. Another problem is how to find the best action when the environment is changing dynamically. In this paper, we propose a self-organized Q-Learning-based CE (Q-CE) which: 1) autonomously adapts the link configuration; 2) applies the previous action under similar environments and 3) where the environment changes, Q-CE learns from radio environment behavior and PU activities the best action to apply, in order to achieve QoS requirements and avoid interfering with PUs. The proposed CE combines following methods: ADPSO for link configuration; CBR for fast reasoning under similar environment; and Q-Learning to learn the environmental behavior. The results show improvements of about 67% in the achieved throughput, about 50% in signaling overhead when compared with the previous solutions that use only ADPSO and CBR.","PeriodicalId":425676,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126948217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Very tight coupling between LTE and Wi-Fi for advanced offloading procedures LTE和Wi-Fi之间的紧密耦合，用于高级卸载过程

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934865

X. Lagrange

引用次数: 35

On the performance of transceiver techniques for the K-user MIMO IFC with LTE-A turbo coding LTE-A turbo编码的k用户MIMO IFC收发技术性能研究

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934898

G. Alexandropoulos, S. Papaharalabos, C. Papadias

引用次数: 0

Resource Allocation Strategy using optimal power control for mitigating two-tier interference in heterogeneous networks 基于最优功率控制的异构网络资源分配策略

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934869

S. Pal, T. A. Nugraha, S. Shams, Atiqur Rahman

{"title":"Resource Allocation Strategy using optimal power control for mitigating two-tier interference in heterogeneous networks","authors":"S. Pal, T. A. Nugraha, S. Shams, Atiqur Rahman","doi":"10.1109/WCNCW.2014.6934869","DOIUrl":"https://doi.org/10.1109/WCNCW.2014.6934869","url":null,"abstract":"Heterogeneous networks (Hetnets) consisting of Macro-cells and Small-cells (e.g. Femto-, Metro-, Pico-cell) are capable of extending cellular coverage and increasing capacity, while Fractional Frequency Reuse (FFR) scheme has been proposed. This scheme is most likely used for upcoming and future cellular systems especially in cellular OFDM networks (ex. LTE, Wimax). In Hetnets or two-tier networks of Macro-cells layered with Small-cells, the resource allocation will be sharing the same licensed frequency spectrum. In this paper, a simple resource allocation strategies along with power coordination scheme for the two-tier Macro/Femto is proposed that allows Femto-cells to coordinate and allocate more resources frequency allocation by using fractional frequency approach. The adaptive power allocation is also adopted. This strategy is analyzed in a multi-cell systems with coexistence of Macro-cells. Analytical and simulation results show that our simple resource allocation strategies are able to reduce inter-tier interferences and to offer an improvement of coverage probability and edge user SINR in the two-tier environment networks.","PeriodicalId":425676,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133373321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Performance analysis of Radio Environment Map accuracy on resource reuse in multi-channel cellular networks 多信道蜂窝网络中无线电环境图精度对资源复用的性能分析

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934884

R. Dziyauddin, T. Farnham, M. Sooriyabandara

{"title":"Performance analysis of Radio Environment Map accuracy on resource reuse in multi-channel cellular networks","authors":"R. Dziyauddin, T. Farnham, M. Sooriyabandara","doi":"10.1109/WCNCW.2014.6934884","DOIUrl":"https://doi.org/10.1109/WCNCW.2014.6934884","url":null,"abstract":"This paper presents a numerical study to quantify the benefits of using Radio Environment Maps (REM) within resource management techniques. To date, there are no REM studies established to benchmark the impact of REM models and their accuracy for inter-cell interference coordination (ICIC) within multi-channel systems, such as based on OFDMA (Orthogonal Frequency Division Multiple Access). We evaluate REM using a reuse partitioning scheme and it is benchmarked against a system without REM where no-reuse partitioning is employed. Results show that the large interior with REM is able to improve the system efficiency at certain load for low exponents. This study is further extended to the effects of REM information accuracy, such as the predictions of path losses, fading variances as well as the load, on the system performance. It is found that the variation in the load estimation by REM has the greatest effect on the system efficiency, and it is significant for high path loss exponent resulting in significant loss of system efficiency. In contrast, the fading variance accuracy has the least impact on the efficiency performance. This research implies that REM is beneficial in improving the cellular system performance, particularly in intercell-interference coordination.","PeriodicalId":425676,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132797296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IAN: Interference-aware routing geometry on proximity for cognitive radio networks 认知无线电网络接近度上的干扰感知路由几何

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934868

T. Le, Gil-Won Lee, Dong-Seong Kim

引用次数: 2

Self-optimization of LTE Mobility State Estimation thresholds LTE移动状态估计阈值的自优化

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934879

J. Turkka, T. Henttonen, T. Ristaniemi

引用次数: 7

Scalable LTE interference mitigation solution for HetNet deployment 用于HetNet部署的可扩展LTE干扰缓解解决方案

2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW) Pub Date : 2014-04-06 DOI: 10.1109/WCNCW.2014.6934859

A. Chiumento, S. Pollin, C. Desset, L. Perre, R. Lauwereins

{"title":"Scalable LTE interference mitigation solution for HetNet deployment","authors":"A. Chiumento, S. Pollin, C. Desset, L. Perre, R. Lauwereins","doi":"10.1109/WCNCW.2014.6934859","DOIUrl":"https://doi.org/10.1109/WCNCW.2014.6934859","url":null,"abstract":"Interference management has become an important concern for the wireless community over the years. This is especially important in the context of LTE, which relies on OFDMA and dense frequency reuse. Different techniques for inter-cell interference coordination are available in literature but most of them make use of static methods, which cannot adapt to a load changing network or heavily complex centralized systems which present an obstacle for future scalability. Furthermore the addition of heterogeneous components, such as femtocells, has incremented the inter-cell interference problem even more. Given the unpredictable nature of femtocells and the fact that no communication mechanism is envisioned between macrocells and femtocells, the inter-cell interference problem needs to be addressed in two separate ways. In this paper we analyze a heterogeneous LTE OFDMA downlink network and we propose a low-complexity, distributed interference mitigation method which is aware of network load and propagation conditions. The method is fully scalable and addresses the macro-to-macro and the femto-to-macro interference separately. The proposed method makes use of the iterative Hungarian algorithm, which effectively reduces interference and enhances the quality of service of starved user when compared to other state of the art solutions.","PeriodicalId":425676,"journal":{"name":"2014 IEEE Wireless Communications and Networking Conference Workshops (WCNCW)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114477135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6