MOBICOM

We present BeHop, a wireless testbed for dense WiFi networks often seen in residential and enterprise settings. BeHop aims to provide insights on the operation of dense deployments, and evaluate how different WiFi management strategies affect user ...

The evaluation of wireless and mobile communication systems in real-world testbeds can be cumbersome and tedious. Experiments require manual intervention to coordinate the execution of involved programs and to collect test results on each involved ...

Software-Defined Radios (SDR), which digitize RF spectrum and perform traditional receiver tasks in software, are becoming increasingly viable as an enabling technology for mobile networks and sensor networks. The concurrent rise in commercially ...

Spectrum regulators consider geo-location databases as the most reliable source of spectrum information for White Space Devices (WSDs). Geo-location databases protect TV band incumbents by keeping track of TV transmitters, and their protected service ...

Dynamic Spectrum Access aims at exploiting underutilized frequency bands towards improving wireless network performance. In this context, spectrum sensing is employed, in order to monitor spectrum occupancy and drive appropriate adaptation decisions. ...

We study the performance impact of the Message in Message (MIM) mechanism in modern 802.11 networks. The MIM mechanism refers to the capability of receiver to abandon an ongoing reception of an 802.11 MAC frame and shift to decode another frame with a ...

Over the last few decades, we witnessed notable progress in wireless communication. This has led to rapid emergence of heterogeneous wireless technologies that share the RF spectrum in an un-coordinated way. Such a coexistence introduces high ...

We present a solution for enabling standard compliant channel access for a fully software-based Software Defined Radio (SDR) architecture. With the availability of a GNU Radio implementation of an Orthogonal Frequency Division Multiplexing (OFDM) ...

Wireless communication offers access to information even to users living in areas where little to no access to affordable communication channels is available. Delay Tolerant Networks~(DTNs) enable content distribution in such areas, using mobility of ...

We design, implement and evaluate a load-adaptive MAC protocol based on a flexible, component-based link layer architecture. We first present the overall architecture that facilitates a generic data transfer protocol used by ordinary user applications ...

A co-primary spectrum sharing trial is presented in this paper. It is presenting a flexible way to share resources between multiple operators in order to increase spectral efficiency. In this trial the differences in traffic patterns of themobile ...

Wireless communication is inherently prone to disruption by interference. Frequency Hopping (FH) can counter interference and promises to enable communication again even in the presence of intentional interference by jammers. Evaluations of this anti-...

Nowadays, the overcrowding of ISM bands is becoming an evident limitation for the performance and widespread usage of 802.11 and 802.15.4 technologies. In this demo, we prove that it is possible to opportunistically exploit the inter-technology ...

In the demo, we illustrate the integration aspects of LTE testbed using LabVIEW SISO OFDM Physical layer and open source NS-3 LTE LENA stack. We leverage the NS-3 LENA module, which allows researchers to conduct simulations by emulating large network of ...