A major drawback of the Orthogonal Frequency-Division Multiplex (OFDM) principle is the high dynamic range of the transmit signal. The transmit Power Amplifier (PA) and other elements in the signal path have to be operated at high Input Power BackOff (IBO), which decreases the efficiency of the PA and leads to higher costs. This paper presents a novel receive algorithm for OFDM signals with limited dynamic range. Similar to existing estimators for clipped real processes, a closed-form expression of a Bayesian estimator for more practically relevant clipped complex Gaussian processes, observed over the Additive White Gaussian Noise (AWGN) channel, is derived. The estimator is based on the distribution of the real and imaginary parts of the complex baseband OFDM signal.
Did you find this white paper useful?
25 out of 37 users found this white paper useful
Related white papers
802.11n Access Points and Power over Ethernet: Key Considerations
In this 5 page report, you'll discover more about the key technical considerations when making the move to 802.11n. The report provides: ? An overview of PoE ? Information on verifying power...
Practical Considerations for deploying 802.11n whitepaper
There is a lot of confusion surrounding the capabilities and status of the new 802.11n WiFi standard; understandable since the standard is very broad and has been slow to develop. There...
Intel Case Study: Strix Systems Access/One Network
The difference between a Strix Systems Access/One Network and a typical enterprise network is simple: wires or, no wires. Going where only wired solutions have gone before, Strix Systems designed...
Retooling WLAN Access Points With Intel IXP422 Network Processor Improves Performance, Lowers Costs, Speeds Time to Market
Since 1999, RadioFrame Networks has focused on enhancing the wireless experience for enterprise users by making wireless communications technology work better indoors. With their unique converged mobile cellular services and...
MiFi: A Framework for Fairness and QoS Assurance in Current IEEE 802.11 Networks With Multiple Access Points
This paper presents a framework for providing fair service and supporting QoS requirements in IEEE 802.11 networks with multiple access-points (APs). These issues becomes critical as IEEE 802.11 wireless LAN...
Cisco Deploys Wireless LAN Technology to Increase Productivity
Cisco IT began developing a consistent and supported wireless networking architecture. During this process, IT recognized a growing number of non-IT deployments throughout the company, led by user demand for...
Technologies to Support Business Networking - Bluetooth
This paper describes some of the key reasons for and benefits of networking and explores specific types of and uses for networks. To make this extensive topic more manageable, the...
