CPU Offload WiFi: Enables CE devices to support WiFi functions seamlessly

Why CPU (or TCP/IP) Offload is Important for WiFi-enabled Consumer Electronics?

With continued technology advancements, WiFi has extended its applications from traditional PC networks to consumer electronics (CE). Today’s WiFi-enabled devices come in many shapes and forms, exist everywhere, and can do everything from sending data to streaming video. However, the processing requirements of the host processor demanded by the WiFi chipset will have significant effects on the overall performance of the stationary CE system. “Stealing” processing cycles from the host CPU for WiFi operations effectively removes those cycles from other tasks that may be more essential to the functionality of the CE products. By doing so, the performance of the primary function of the product in the eyes of users is diminished. Generally accepted rule of thumb is that 1 hertz of CPU processing is required to send or receive 1 bit/s of TCP/IP. For example 1.2 Gbit/s (150 MB/s) of network traffic requires 1.2 GHz of CPU Processing. This implies that 50% of a 2.4 GHz core processor will be required to handle the TCP/IP processing associated with 1.2 Gbit/s of TCP/IP traffic.

Unex’s CPU Offload WiFi Solutions Designed Specifically for Consumer Electronics

Unex’s CPU offload WiFi solutions feature a new architecture that integrates both a CPU and memory to run more of the WiFi function on-chip. The design breakthrough of integrated CPU and memory offload the wireless processing overhead from the host appliance and enable the consumer electronics devices with host processors not originally intended to support wireless functions, to now offer robust Wi-Fi performance seamlessly. 

DNUA-93F: 

802.11n b/g wifi USB adapter (1T1R), UB93/AR9271

DNUA-93F 3D Radiation Pattern at 2.4GHz