2 result(s) displayed for unicast (1 - 2 of 2):
By: Roland Mestric, Director, Video Solutions Marketing, Alcatel-Lucent
From original Alcatel-Lucent TechZine posting
This article provides guidance on network architecture choices for operators considering introducing the time-shifted TV services provided by cloud digital video recording (DVR) solutions. Time-shifted TV services include catch up, restart, pause live TV, and personal recordings. The same guidance applies to those wanting to deliver subscription-based VoD services—either their own or those of partners.
Forward thinking providers are already concerned that the coming wave of unicast traffic generated by popular on-demand video services will affect the delivery network from end to end. Clarifying the potential impact of these services on the network is vital as the ramifications could be significant.
By Mae Kowalke
One of the challenges faced by mobile network service providers deploying 4G LTE (Long Term Evolution) is using it to deliver popular multimedia content to a mass audience in the most efficient and effective manner. In the past, operators had two options: unicast or broadcast.
For those unfamiliar with the terms, below is a brief description of each:
- Unicast — the sending content to a single network destination, with a unique address. It is a one-to-one method of distribution. Traditionally, unicast has been when each individual recipient wanted or needed different content.
- Broadcast — as the name implies, is sending the same content to all possible destinations, e.g., it is a one-to-many or one-to-all method of distribution. The obvious downside of broadcast is that everyone receives identical content.
Recently, a new technology call evolved multimedia broadcast multicast service (eMBMS) entered the scene. It makes possible the efficient broadcasting of content only to interested recipients. An added attraction is that eMBMS is highly scalable. It uses only a fraction of the capacity compared with unicast. This gives operators the best of both worlds: the flexibility of unicast and the efficiency of broadcast.