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Downlink Performance Analysis of Full-Rate STCs in 2×2 MIMO WiMAX Systems

MIMO techniques play a key role in the current wireless specifications including IEEE 802.11n, IEEE 802.16e, and LTE. Indeed, Spatial Multiplexing SM and Alamouti code are already in use in WiMAX systems based on IEEE 802.16e specifications. But more efficient full-diversity full-rate codes, such as Golden code, are still under...

Tags: Performance, Specification, MIMO, IEEE, Sequans, WiMAX, Performance Management, Wi-Fi, Wireless And Mobility, Human Resources, Workforce Management

White papers 2008-10-12

An Analysis of the Benefits of Uplink MIMO in Mobile WiMAX Systems

This paper discusses the improvements that uplink MIMO brings to Mobile WiMAX network deployments and introduces a new technique based on uplink MIMO, tile switched diversity TSD. Uplink MIMO (UL-MIMO) provides extended coverage (up to 41 percent cell radius increase), and can also be used to reduce power consumption (to...

Tags: Mobile, Benefit, MIMO, Analysis, Sequans, WiMAX, Advertising & Promotion, Wireless And Mobility, Marketing

White papers 2008-06-01

A Full-Rate Full-Diversity 2×2 Space-Time Code for Mobile WiMAX Systems

The recently developed IEEE 802.16e specifications for broadband wireless access include three multiple-input multiple-output MIMO profiles employing 2×2 Space-Time Codes STCs and two of those are mandatory on the downlink of Mobile WiMAX systems. One of these is full rate, and the other is full diversity, but neither of them...

Tags: Mobile, Sequans, WiMAX, Wi-Fi, Wireless And Mobility

White papers 2008-03-26

An Analysis of OFDM Peak Power Reduction Techniques for WiMAX Systems

The main drawback of Orthogonal Frequency Division Multiplexing OFDM systems is the high Peak-to-Average Power Ratio PAPR, which significantly reduces the efficiency of the transmit High Power Amplifier HPA. Several methods have been proposed in the literature to reduce the peak power of OFDM signals and substantial gains were reported....

Tags: Technique, Analysis, Sequans, OFDM, WiMAX, Wireless And Mobility

White papers 2006-02-01

Additional Resources

Meet the first four WiMAX-certified products

Fixed WiMAX had its big coming out party on Thursday at the Wireless Communications Association Technical and Business Symposium in San Jose.I wasn't physically there, but I did the next best thing. I monitored it for you.On Thursday the WiMAX Forum announced its first four fixed (say that fast...

Tags: WiMAX

Blog posts 2006-01-19