Workshop on Cooperative and Cognitive Networks (CoCoNet7)

Monday, 8 June 2015 • 09:00 – 18:00

WS-16: Cooperative and Cognitive Networks (CoCoNet7)

Organizer: Qi Zhang (Aarhus University, Denmark)

The scope of the CoCoNet7 workshop is to bring together a highly qualified group of people with interest in cooperative and cognitive wireless networks. Cooperation has been identified as one of the underlying principles for future wireless communication systems. Cooperation, altruistic or non-altruistic, is the basis to break up the cellular concept and enrich it by multi hop, peer-to-peer, or cloud functionalities. The workshop will highlight the newest trends in this emerging area, complementing it with first practical implementations and demonstrations in this field. New technologies and concepts such as network coding and mobile clouds are the driving forces for cooperative and cognitive networks. Besides the technical insights, the CoCoNet workshop will serve as an active discussing and networking forum for participants. The workshop organises papers for oral presentations and papers which will be presented in poster sessions possibly accompanied with demonstrations or test-beds.

Welcome Session

Keynote-1: Assured High-Throughput Wireless Networking Through Cooperation in the Presence of Heterogeneous Cross-layer Attacks

Wireless multi-hop networks are vulnerable to various attacks including, most notoriously, denial-of-service (DoS) attacks. Being exposed on the propagation channel, wireless transmissions can easily be degraded by malicious jammers. In traditional wireless security, jamming attacks are typically dealt with in isolation and independently of other attacks. While this divide-and-conquer approach has contributed to facilitating the analysis and design of effective countermeasures, it fails to capture the new challenges brought by heterogeneous cross-layer attacks. By utilizing multiple means at multiple layers of the protocol stack with a unified goal, the adversary may be able to obtain an unexpected edge. Traditional security approaches, however, fail to address the potential consequences of such heterogeneous cross-layer attacks.In this talk, we will provide an overview of recent work aimed at developing a cooperative framework for assured high-throughput networking with heterogeneous cross-layer attacks. Our objective is to develop a unified universal framework capturing potential attacks at all layers to address the corresponding vulnerabilities.We will first discuss a new mathematical framework to develop optimal cooperative anti-jamming strategies. While traditional anti-jamming schemes only exploit frequency diversity, we introduce the notion of cooperative anti-jamming, where denial-of-service attacks are dealt with by leveraging cooperation among different legitimate users. Two levels of cooperation are considered. At the physical layer, cooperative communication based on relaying is used to enhance the link throughput of jammed links; at the MAC layer, legitimate users cooperate to optimally regulate their channel access probabilities so that jammed users gain a higher share of channel utilization. The problem of developing optimal cooperation strategies is formulated as a distributed pricing-based optimization problem and a best response algorithm with provable convergence is proposed. We show that the proposed framework achieves close-to-global optimality.We will then discuss how to integrate network layer and data security requirements into the framework. Most routing protocols for wireless multi-hop networks are based on controlling the network dynamics at multiple layers. This coupling implies that changes in the dynamics at layers other than the network layer also affect the routing decisions. As a result, an adversary may be able to extend attacks to the network layer by impacting functionalities at the physical layer through jamming. A jammer can in fact degrade the capacity of selected communication links. Then, because cross-layer routing protocols are often designed to avoid links with low capacity, jammed nodes are likely to redirect their traffic by choosing alternate paths. With proper collaboration from compromised nodes, data may directly to compromised nodes. We model hammer and attack and analyze the threat to wireless multi-hop networks. Characteristics helpful in countermeasure designs are observed, and, based on such observations, we design a trust-based cooperative countermeasure that shows considerable resistance to the attack.

Cognitive Radio Networks

Channel Reservation for Dynamic Spectrum Access of Cognitive Radio Networks with Prioritized Traffic
Thi My Chinh Chu and Hans-Juergen Zepernick (Blekinge Institute of Technology, Sweden); Hoc Phan (University of Reading, United Kingdom)
pp. 883-888
Joint Spectrum Sensing and Jamming Detection with Correlated Channels in Cognitive Radio Networks
Jafar Mohammadi (Fraunhofer Heinrich-Hertz-Institute & Technical University of Berlin, Germany); Slawomir Stanczak (Fraunhofer Heinrich Hertz Institute & Technische Universität Berlin, Germany); Meng Zheng (Shenyang Institute of Automation, Chinese Academy of Sciences, P.R. China)
pp. 889-894
Filter-and-Forward Distributed Relay Beamforming for Cognitive Radio Systems
Jing Xiao Ma, Wei Liu and Richard Langley (University of Sheffield, United Kingdom)
pp. 895-900

Cooperative and Relaying Networks

Average Rate Analysis of Coordinated Relay Networks: Two-Cell Case
Kasun T. Hemachandra (University of Alberta, Canada); Norman C Beaulieu (Beijing University of Posts and Telecommunications BUPT, P.R. China)
pp. 901-906
Fractional Frequency Reuse in Distributed Antenna Systems in Cloud Radio Access Networks
Ying He, Eryk Dutkiewicz and Gengfa Fang (Macquarie University, Australia); Markus Dominik Mueck (Intel Mobile Communications, Germany)
pp. 907-912
Maximum Throughput Opportunistic Network Coding in Two-Way Relay Networks
Maha Zohdy (Nile University, Egypt); Tamer ElBatt (Faculty of Engineering, Cairo University & WINC, Nile University, Egypt); Mohammed Nafie (Cairo University & Nile University, Egypt)
pp. 913-918
Rate Selection for Cooperative HARQ-CC Systems over Time-Correlated Nakagami-m Fading Channels
Zheng Shi, Shaodan Ma and Kam Weng Tam (University of Macau, P.R. China)
pp. 919-924
Outage Analysis of Cooperative Multi-Path Relay Channels with Virtual Full-Duplex Relaying
Qiang Li and Manli Yu (Huazhong University of Science and Technology, P.R. China); Ashish Pandharipande (Philips Research Laboratories, The Netherlands); Ge Xiaohu (Huazhong University of Science & Technology, P.R. China)
pp. 925-930
Energy-Efficient Power Allocation of Two-Hop Cooperative Systems with Imperfect Channel Estimation
Osama Amin (King Abdullah University of Science and Technology (KAUST), Saudi Arabia); Ebrahim Bedeer (University of British Columbia, Canada); Mohamed Hossam Ahmed (Memorial University, Canada); Octavia A. Dobre (Memorial University of Newfoundland, Canada); Mohamed-Slim Alouini (King Abdullah University of Science and Technology (KAUST), Saudi Arabia)
pp. 931-936
Multihop Communications over CSI-Assisted Relay IM/DD FSO Systems with Pointing Errors
Emna Zedini (KAUST, Saudi Arabia); Mohamed-Slim Alouini (King Abdullah University of Science and Technology (KAUST), Saudi Arabia)
pp. 937-942
Relay Selection for MIMO Two-Way Relay Networks with Spatial Multiplexing
Shashindra Silva (University of Alberta, Canada); Gayan Amarasuriya (Princeton University, USA); Chintha Tellambura and Masoud Ardakani (University of Alberta, Canada)
pp. 943-948

Cooperative and Cognitive Radio Networks

Performance Analysis of Cooperative Networks with Optimum Combining and Co-channel Interference
Ali Afana (Memorial University of Newfoundland, Canada); Salama Said Ikki (Lakehead University & Electrical Engineering Department, Canada); Telex M. N. Ngatched and Octavia A. Dobre (Memorial University of Newfoundland, Canada)
pp. 949-954
Energy Detection under RF impairments for Cognitive Radio
Alexandros-Apostolos A Boulogeorgos, Nestor Chatzidiamantis, George K. Karagiannidis and Leonidas Georgiadis (Aristotle University of Thessaloniki, Greece)
pp. 955-960
Distributed Sensing of Interference Pattern in Dense Cooperative Wireless Networks
Gloria Soatti and Monica Nicoli (Politecnico di Milano, Italy); Stefano Savazzi (CNR - National Research Council of Italy & Politecnico di Milano, Italy); Umberto Spagnolini (Politecnico di Milano, Italy)
pp. 961-966
Gibbs Sampling based Spectrum Sharing for Multi-Operator Small Cell Networks
Petri Luoto (University of Oulu, Finland); Mehdi Bennis (Centre of Wireless Communications, University of Oulu, Finland); Pekka Pirinen (University of Oulu, Finland); Sumudu Samarakoon (Centre for Wireless Communications, University of Oulu, Finland); Matti Latva-aho (UoOulu, Finland)
pp. 967-972
Cooperative Sensing Technique for Random Secondary Wireless Networks
Yibo He (The University of Edinburgh, United Kingdom); Jiang Xue (The University of Edinburgh & IDCOM, United Kingdom); Tharmalingam Ratnarajah (The University of Edinburgh, United Kingdom); Mathini Sellathurai (Heriot-Watt University, United Kingdom)
pp. 973-978
Cooperative Bi-Directional DF Cognitive Radio Networks with Limited Feedback and Beamforming
Ali Afana, Telex M. N. Ngatched and Octavia A. Dobre (Memorial University of Newfoundland, Canada); Ali Ghrayeb (Texas A&M University at Qatar, Qatar)
pp. 979-984

Interactive Session 1: Performance Analysis of Cooperative Networks

Performance Analysis of Relay-aided Heterogeneous Networks with Interference Cancellation
Kang Song (Southeast University, P.R. China); Baofeng Ji (Henan University of Science and Technology, P.R. China); Yongming Huang (Southeast University, P.R. China); Ming Xiao (Royal Institute of Technology, Sweden); Shi Jin and Luxi Yang (Southeast University, P.R. China)
pp. 985-990
Performance Analysis of Random Linear Network Coding in Two-Source Single-Relay Networks
Amjad Khan and Ioannis Chatzigeorgiou (Lancaster University, United Kingdom)
pp. 991-996
Performance Analysis of OFDM-Based Denoise-and-Forward Full-Duplex PLNC with Imperfect CSI
Bilal A. Jebur and Charalampos C. Tsimenidis (Newcastle University, United Kingdom)
pp. 997-1002
Interference Cancellation based Transmission Strategy Using Primary ARQ for Cooperative CRNs
Dawei Wang, Pinyi Ren, Yichen Wang, Qinghe Du and Li Sun (Xi'an Jiaotong University, P.R. China)
pp. 1003-1008

Interactive Session 2: Cooperative Cognitive Mobile Networks

A Novel CoMAC-based Cooperative Spectrum Sensing scheme in Cognitive Radio Networks
Meng Zheng, Chi Xu and Wei Liang (Shenyang Institute of Automation, Chinese Academy of Sciences, P.R. China); Haibin Yu (Shenyang Institute of Automation China Academy of Sciences, P.R. China); Lin Chen (The University of Paris-Sud, France)
pp. 1009-1013
Sequential Hard-Decision Fusion for Agile Cooperative Spectrum Sensing
Ala Abu Alkheir and Hussein T Mouftah (University of Ottawa, Canada)
pp. 1014-1019
Performance Analysis of Interference-Limited AF Relay Systems with Antenna Correlation
Jian Ouyang (Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, P.R. China); Min Lin (Southeast University, P.R. China); Wei-Ping Zhu (Concordia University, P.R. China); Jun Yan (Nanjing University of Posts and Telecommunications, P.R. China)
pp. 1020-1024
Browsing the Mobile Web: Device, Small Cell, and Distributed Mobile Caches
Troy Johnson and Patrick Seeling (Central Michigan University, USA)
pp. 1025-1029