O'Reilly logo

Baseband Receiver Design for Wireless MIMO-OFDM Communications, 2nd Edition by Pei-Yun Tsai, I-Wei Lai, Tzi-Dar Chiueh

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 11

Mobile MIMO WiMAX System-on-Chip Design

Gene C.H. Chuang, Pan-An Ting, Ying-Chuan Hsiao, Jen-Yuan Hsu, Jiun-You Lai, Cheng-Ming Chen, and Chi-Tien Sun

Industrial Technology Research Institute, Hsinchu, Taiwan

The example of an OFDM receiver IC described in this chapter is a system-on-chip (SoC) that supports 2 × 2 MIMO WiMAX baseband and Media Access Control (MAC) layer functions. This SoC integrates an ARM-926, Flash, and synchronous dynamic random access memory (SDRAM) controller, Advanced Encryption Standard (AES) engine, and Universal Serial Bus (USB) 2.0. This chip delivers an average data transmission rate of 30 Mbps in low-mobility scenarios and up to 5 Mbps at 300 km/h.

11.1 Introduction of WiMAX Standard

The IEEE 802.16 standard for broadband wireless access, known as Worldwide Interoperability for Microwave Access (WiMAX), provides long-range, high-throughput transmission. Attractive features of WiMAX are its flexibility in terms of system deployment and service offerings [1]. The main features of WiMAX are summarized as follows:

  • Orthogonal Frequency-Division Multiple Access (OFDMA). WiMAX uses OFDMA as a multiple-access scheme so that different subsets of the OFDM subcarriers are allocated to different users at different times.
  • IP-based architecture. Migrating from circuit switch to Internet Protocol (IP) packet switch, WiMAX adopts the All-IP structure mainly for two reasons. First, the deployment cost is low, as many existing infrastructures can be used. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required