IEEE 802.11ba

5Physical Layer Performance

5.1 Introduction

In this chapter we discuss the performance of the physical (PHY) layer based on a generic non‐coherent receiver. The actual receiver in a station is based on the design of the implementer and can vary from one implementation to the other. The IEEE 802.11ba standard does not specify the use of a specific receiver design, but it does place some requirements on the receiver performance.

Here we will begin by giving an overview of the generic non‐coherent receiver that will be used to investigate the performance of the PHY layer. The generic receiver is modeled using a software simulation. We will give a description of some of the aspects of the simulation, for example, the modeling of the wireless channel. Then we will provide some simulation results for the 802.11ba PHY layer under various channel conditions.

Since the wake‐up radio (WUR) receiver is intended to decode the narrowband WUR portion of the 802.11ba PHY protocol data unit (PPDU), we will be focusing on that part of the PPDU. The wideband Non‐WUR portion is intended to be decoded by an orthogonal frequency division multiplexing (OFDM) receiver and so is out of scope of this chapter.

5.2 Generic Non‐coherent Receiver

A non‐coherent receive does not rely on knowledge of the phase of the received signal for demodulation. A coherent receiver, which relies on knowledge of the phase of the signal, may use a matched filter to optimally demodulate receive signals. However, to ...