WDM/TDM PON experiments using the AWG free spectral range periodicity to transmit unicast and multicast data

Novel WDM-PON Architecture for Simultaneous Transmission of Unicast Data and Multicast Services

We propose a novel WDM-PON to simultaneously transmit unicast data and multicast services with upstream data re-modulation in optical network units (ONUs). In the optical line terminal (OLT), for each wavelength channel, the downstream unicast data is applied to one arm of a dual-parallel Mach-Zehnder modulator (DPMZM), to generate baseband unicast non-return-to-zero (NRZ) signal, while a radio...

QoS Multicast Using Single Metric Unicast Routing

Multicast-Unicast Reflector

With the deployment of advanced multicast routing protocols and transport protocols for real-time data, multicast services on the Internet experience renaissance. Together with the global improvements in the underlying network infrastructure, this opens possibilities for a wide range of exciting multimedia applications. However, many Internet hosts are not connected to MBone, the Internet multi...

Equation-based congestion control for unicast and multicast data streams

We believe that the emergence of congestion control mechanisms for relatively-smooth congestion control for unicast and multicast traffic can play a key role in preventing the degradation of end-to-end congestion control in the public Internet, by providing a viable alternative for multimedia flows that would otherwise be tempted to avoid end-to-end congestion control altogether. The design of ...

REUNITE: A Recursive Unicast Approach to Multicast

We propose a new multicast protocol called REUNITE. The key idea of REUNITE is to use recursive unicast trees to implement multicast service. REUNITE does not use class D IP addresses. Instead, both group identification and data forwarding are based on unicast IP addresses. Compared with existing IP multicast protocols, REUNITE has several unique properties. First, only routers that are acting ...