MOBICOM

This paper presents several evaluation tests, as well as a case study of large-scale wireless network emulation experiments performed using QOMB, the wireless network emulation testbed at the National Institute of Information and Communications ...

We present Communication and Lighting Emulation Software (CandLES), a model of wireless Visual Light Communications (VLC) that aids the design of dual-use communication and fully functional indoor lighting systems. Given a system design and an ...

Multi-channel access presents a huge potential to boost the performance of 802.11 mesh/adhoc networks. It allows multiple simultaneous transmissions in a given radio neighborhood that improves network throughput and scalability. Still, its research is ...

Several benefits can be derived from having a user community associated with an experimental wireless network, such as access to real user's network traffic. However, to ensure continued use of the network, it must provide acceptable levels of service. ...

The common practice in wireless networking optimization is to address a problem domain, such as channel assignment or transmit power control, and test it across various environments, topologies and traffic rates. This approach, however, provides only a ...

802.11n has made a quantum leap over legacy 802.11 systems by supporting extremely higher transmission rates at the physical layer. In this paper, we ask whether such high rates translate to high quality links in a real deployment. Our experimental ...

Researchers typically evaluate and compare protocols on the testbeds by running them one at a time. This methodology ignores the variation in link qualities and wireless environment across these experiments. These variations can introduce significant ...

Despite recent improvements of the capabilities of Wireless Sensor Networks (WSN) nodes, network protocol support for key management is still lagging behind. While in traditional networks well known protocol suites (e.g., IPsec IKE and the TLS handshake)...

A testbed is a powerful complement to simulation and emulation for evaluation of wireless sensor network (WSN) applications. However, testbeds tend to be limited to lab environments and tightly coupled to specific hardware and sensor OS configurations. ...

We present and evaluate HYDRA, a virtualized testbed for realistic large-scale network simulations. While classic simulation tools only provide approximations of the protocol stack, HYDRA virtualizes nodes running a complete Linux system. Mobility ...