Redundancy on Demand—Extending the Coverage Area of Terrestrial Broadcast via Broadband Networks

Abstract

Nowadays more and more TV terminal devices for digital terrestrial broadcast are also equipped with broadband network interfaces. In view of this fact, we developed a novel redundancy on demand (RoD) system to improve the reception of terrestrial broadcast signals with the help of additional redundancy data transmitted via broadband networks. We propose various forms of redundancy, which can be provided on request by the receiving terminal in case of reception errors. RoD does not require any changes of the current broadcast network structure and is compatible with conventional receivers. Simulation results show that a small portion of additional redundancy data provided by the broadband network leads to significant performance improvements of the reception, making high data rate broadcasting feasible in a realistic environment. RoD introduces a new degree of freedom for network planning helping to reduce transmission cost and network energy consumption.

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

“…Technologies include Hybrid broadcast broadband TV (HbbTV) [3], Redundancy on Demand (RoD) [4] and Dynamic Broadcast [5]. Recently there has been work into Bidirectional Broadcasting in Next Generation Broadcasting -Wireless (NGB-W) Networks [6].…”

Partial HARQ Retransmission for Broadcast in Fading Channels

“…Since more and more TV terminals are equipped with a broadband connection, a novel Redundancy on Demand (RoD) technique was proposed recently in order to improve the reception of terrestrial broadcast signals with the help of additional redundancy data [5]. Depending on the terminal position and quality of reception, a parallel redundancy transmission on the broadband connection can help to increase reception quality and network coverage.…”

A generic framework for evaluating the performance of software defined radio algorithms

“…Additionally, using SDR it is easy to support several standards in parallel [1] thus reducing the number of hardware components and simplifying the overall CE design. Furthermore, SDR allows a fast and cheap implementation of prototypes showing new technologies live [2].…”