Adaptive broadcast beamforming techniques in a multiple frequency network

Spatially Adaptive TV Broadcast System: Hardware in the Loop Operational Analysis

“…The simulation work shown in [1] illustrated a 1 dB reduction in broadcast power based on applying beamforming at broadcast towers, while maintaining the same level of coverage as the omnidirectional broadcast case. This fits with the work shown in this paper with a spatially adaptive system, where further broadcast power reductions have been illustrated.…”

“…(698 MHz) using DVB-T. Data was taken using a roof top aerial and a National Instruments USRP operated through LabView. This figure has been reproduced from [1]. …”

“…Accepted January 23,2017. Figure 5 and related data has been reproduced from research previously presented in [1]. P. Bagot, M. Beach, A. Nix and J.P McGeehan are with the Communication Systems and Networks Research Group, University of Bristol, BS8 1UB Bristol, UK.…”

“…T HE aim of the research presented in this paper was to examine the feasibility of a spatially adaptive broadcast system; a previous feasibility study in this area was covered in [1]. A spatially adaptive broadcast system is one where the broadcast powers and antenna patterns can be spatially manipulated via an adaptive algorithm, driven by user feedback supplied by a distributed monitoring network.…”

“…The DVB-T signal was then fed into an Anite 1 [10] F8 channel emulator [11]. The F8 consists of 8 external Radio Frequency (RF) inputs and outputs, and can create up to 64 internally emulated wireless channels.…”