Cooperative Wireless-Based Obstacle/Object Mapping and See-Through Capabilities in Robotic Networks
In this paper, we develop a theoretical and experimental framework for the mapping of obstacles (including occluded ones), in a robotic cooperative network, based on a small number of wireless channel measurements. This would allow the robots to map an ...
Mutual Distance Bounding Protocols
A distance bounding protocol enables one entity to determine an upper bound on the physical distance to the other entity as well as to authenticate the other entity. It has been actively researched during the recent years as distance-based attacks like ...
Cooperative Packet Delivery in Hybrid Wireless Mobile Networks: A Coalitional Game Approach
We consider the problem of cooperative packet delivery to mobile nodes in a hybrid wireless mobile network, where both infrastructure-based and infrastructure-less (i.e., ad hoc mode or peer-to-peer mode) communications are used. We propose a solution ...
Evaluating Implementation Strategies for Location-Based Multicast Addressing
Location-based multicast addressing (LMA) yields an important building block for context-aware applications in mobile ad hoc networks (MANETs). In LMA, messages are routed based on their content as well as on the location of the sending and the ...
A General Performance Evaluation Framework for Network Selection Strategies in 3G-WLAN Interworking Networks
In this work, we investigate a general performance evaluation framework for network selection strategies (NSSs) that are used in 3G-WLAN interworking networks. Instead of simulation, this framework is based on models of NSSs and is constructed using a ...
A Strategy-Proof Radio Spectrum Auction Mechanism in Noncooperative Wireless Networks
With the growing deployment of wireless communication technologies, radio spectrum is becoming a scarce resource. Thus, mechanisms to efficiently allocate the available spectrum are of interest. In this paper, we model the radio spectrum allocation ...
VAPR: Void-Aware Pressure Routing for Underwater Sensor Networks
Underwater mobile sensor networks have recently been proposed as a way to explore and observe the ocean, providing 4D (space and time) monitoring of underwater environments. We consider a specialized geographic routing problem called pressure routing ...
Minimum CDS in Multihop Wireless Networks with Disparate Communication Ranges
Connected dominating set (CDS) has a wide range of applications in mutihop wireless networks. The Minimum CDS problem has been studied extensively in mutihop wireless networks with uniform communication ranges. However, in practice, the nodes may have ...
Secret Key Extraction from Wireless Signal Strength in Real Environments
- Sriram N. Nandha Premnath,
- Suman Jana,
- Jessica Croft,
- Prarthana L. Lakshmane Gowda,
- Mike Clark,
- Sneha K. Kasera,
- Neal Patwari,
- Srikanth V. Krishnamurthy
We evaluate the effectiveness of secret key extraction, for private communication between two wireless devices, from the received signal strength (RSS) variations on the wireless channel between the two devices. We use real world measurements of RSS in ...
Efficient Objective Functions for Coordinated Learning in Large-Scale Distributed OSA Systems
In this paper, we derive and evaluate private objective functions for large-scale, distributed opportunistic spectrum access (OSA) systems. By means of any learning algorithms, these derived objective functions enable OSA users to assess, locate, and ...
A Probabilistic Place Extraction Algorithm Based on a Superstate Model
Research on place extraction has been of interest for the detection of meaningful places that users visit. Because interpretations of meaningful places may be different according to location-based applications, a universal place extraction algorithm ...
Resource Allocation with Flexible Channel Cooperation in Cognitive Radio Networks
We study the resource allocation problem in an OFDMA-based cooperative cognitive radio network, where secondary users relay data for primary users in order to gain access to the spectrum. In light of user and channel diversity, we first propose FLEC, a ...
Fine-Grained Location-Free Planarization in Wireless Sensor Networks
Extracting planar graph from network topologies is of great importance for efficient protocol design in wireless ad hoc and sensor networks. Previous techniques of planar topology extraction are often based on ideal assumptions, such as UDG ...
Effective Video Multicast Using SVC with Heterogeneous User Demands over TDMA-Based Wireless Mesh Networks
We provide an effective video multicast framework over time division multiple access (TDMA)-based wireless mesh networks (WMNs). Heterogeneous user demand is considered where each multicast receiver has its own video quality demand. In video ...
Dynamic Control of Receiver Buffers in Mobile Video Streaming Systems
We propose a novel algorithm to efficiently transmit multiple Variable-Bit-Rate (VBR) video streams from a base station to mobile receivers in wide-area wireless networks. The algorithm multicasts video streams in bursts to save the energy of mobile ...
UPL: Opportunistic Localization in Urban Districts
We propose an opportunistic ad hoc localization algorithm called Urban Pedestrians Localization (UPL), for estimating locations of mobile nodes in urban districts. The design principles of UPL are twofold. First, we assume that location landmarks are ...
Distributed MAC Protocol Supporting Physical-Layer Network Coding
Physical-layer network coding (PNC) is a promising approach for wireless networks. It allows nodes to transmit simultaneously. Due to the difficulties of scheduling simultaneous transmissions, existing works on PNC are based on simplified medium access ...