Abstract
In order to span NII (National Information Infrastructure) into the homes, the community cable TV networks have to be re-engineered to support two-way interactive services. In this work, we propose PCUP (Pipelined Cyclic Upstream Protocol) as the upstream MAC (Medium Access Control) protocol for HFC (Hybrid Fiber Coax) community access network. PCUP is designed with the intention of pipelining the upstream channel. This is achieved by proper station positioning, which measures the station propagation offset from the headend, and transmission scheduling, which assigns each station the transmission starting time and duration in a cycle. By taking into account the propagation offsets and the transmission times, transmitted cells can appear back-to-back, i.e. pipelined, at the headend. Since only the active stations are scheduled to transmit in a cycle, a membership control mechanism, which runs a contention-based tree walk algorithm, is executed periodically to allow the stations to join or leave. We also compare PCUP with various schemes proposed to IEEE 802.14 committee.
| Original language | English |
|---|---|
| Article number | 631140 |
| Pages (from-to) | 1165-1173 |
| Number of pages | 9 |
| Journal | Proceedings - IEEE INFOCOM |
| Volume | 3 |
| DOIs | |
| State | Published - 7 Apr 1997 |
| Event | Proceedings of the 1997 16th IEEE Annual Conference on Computer Communications, INFOCOM. Part 1 (of 3) - Kobe, Jpn Duration: 7 Apr 1997 → 12 Apr 1997 |