| Paper ID | D2-S4-T2.1 |
| Paper Title |
Streaming Erasure Codes over Multi-Access Relay Networks |
| Authors |
Gustavo Kasper Facenda, Elad Domanovitz, Ashish Khisti, University of Toronto, Canada; Wai-Tian Tan, John Apostolopoulos, Cisco Systems, United States |
| Session |
D2-S4-T2: Streaming Codes |
| Chaired Session: |
Tuesday, 13 July, 23:00 - 23:20 |
| Engagement Session: |
Tuesday, 13 July, 23:20 - 23:40 |
| Abstract |
Applications where multiple users communicate with a common server and desire low latency are common and increasing. This paper studies a network with two source nodes, one relay node and a destination node, where each source nodes wishes to transmit a sequence of messages, through the relay, to the destination, who is required to decode the messages with a strict delay constraint T. The network with a single source node has been studied in [1]. We start by introducing two important tools: the delay spectrum, which generalizes delay-constrained point-to-point transmission, and concatenation, which, similar to time sharing, allows combinations of different codes in order to achieve a desired regime of operation. Using these tools, we are able to generalize the two schemes previously presented in [1], and propose a novel scheme which allows us to achieve optimal rates under a set of well-defined conditions. Such novel scheme is further improved in order to achieve higher rates in the scenarios where the conditions for optimality are not met.
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