User's Manual
Table Of Contents
- 1 Preface
- 2 Overview
- 3 Features
- 3.1 Main Features
- 3.2 Adaptive Coding and Modulation (ACM)
- 3.3 Transmit Power Control (TPC)
- 3.4 2x2 Multiple-input and Multiple-output (2x2 MIMO)
- 3.5 Dynamic Frequency Selection (DFS)
- 3.6 Dynamic Channel Selection (DCS)
- 3.7 Retransmission
- 3.8 Configurable Uplink/Downlink Ratio
- 3.9 Quality of Service (QoS)
- 3.10 Power over Ethernet
- 3.11 Synchronization
- 3.12 Co-site Synchronization
- 3.13 OFDM Modulation
- 3.14 Low-density Parity Check (LDPC) Encoding
- 3.15 LLDP
- 3.16 Radio Port Performance Monitoring
- 3.17 Adaptive Noise Immunity (ANI)
- 4 Mechanical Structure and Interfaces
- 5 Product Structure
- 6 Management
- 7 Technical Specification
- 8 Standards
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DragonWave Inc.Features
3.13 OFDM Modulation
The PHY block of Lite is a half-duplexed OFDM baseband processor which supports 52
sub-carrier in 20 MHz bandwidth and 114 sub-carrier in 40 MHz bandwidth which allows
the system to have high spectral efficiency while have robust performance against
narrow-band interference and frequency-selective fading due to multi-path.
Configurable GI allows Lite to work in different scenarios to combat with different delay
spread. The short GI configuration allows Lite to work in low delay spread condition to
have better throughput while the long GI configuration allows Lite to have better radio
performance in worse delay spread condition by sacrificing the throughput.