Per

Packet Error Rate. Like the bit error rate, but measured as a fraction of packets with errors.

Common IEEE abbreviation for the physical layer.

physical-layer convergence procedure

The upper component of the PHY in 802.11 networks. Each PHY has its own PLCP, which provides auxiliary framing to the MAC.

PIFS

PCF Inter-Frame space. During contention-free service, any station is free to transmit if the medium is idle for the duration of one PCF inter-frame space.

PLCP

See physical-layer convergence procedure.

Physical Medium Dependent. The lower component of the MAC, responsible for transmitting RF signals to other 802.11 stations.

PPDU

PLCP Protocol Data Unit. The complete PLCP frame, including PLCP headers, MAC headers, the MAC data field, and the MAC and PLCP trailers.

protocol data unit

Layers communicate with each other using protocol data units. For example, the IP protocol data unit is the familiar IP packet. IP implementations communicate with each other using IP packets. See also service data unit.

Was this article helpful?

0 0
DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

Get My Free Ebook


Post a comment