Design Implementation of Next Generation Wireless LAN for Mass Digital Cinema

We have been designing an over 1.2 Gbps throughput wireless for next generation WLAN system conform with IEEE802.11TGac’s requirements. It reaches 33 meter propagation distance by using 80MHz of bandiwdth on 5GHz band. 4x5 antennas configuration contribute 2nd-order diversity gain and maintain both the high throughput and performance. The Greenfield format preamble was proposed for its high efficiency. Novel phase rotation is employed to lower the PAPR signal. Run test for transmitting 90 frames of 40961714 pixels/frame under in-door channel model proves that the proposed system shall be considered for providing an excellent performance mass digital cinema. Index Terms—Gigabit wireless LAN, IEEE802.11 TGac, digital cinema transmissio

Millimeter-Wave System for High Data Rate Indoor Communications

This paper presents the realization of a wireless Gigabit Ethernet communication system operating in the 60 GHz band. The system architecture uses a single carrier modulation. A differential encoded binary phase shift keying modulation and a differential demodulation scheme are adopted for the intermediate frequency blocks. The baseband blocks use Reed- Solomon RS (255, 239) coding and decoding for channel forward error correction (FEC). First results of bit error rate (BER) measurements at 875 Mbps, without channel coding, are presented for different antennas.Comment: 5 page

Adaptive Negotiation for Block Acknowledgment Session Management

International audienceThe expansion of wireless applications in dense environments raises many technical issues. The 802 standards need to adapt and enhance the network quality by developing new technologies. The block acknowledgment (BA) mechanism was introduced in the IEEE 802.11e standard to improve medium access control (MAC) efficiency. It requires the exchange of many control frames to establish a session with each user, which turns into an issue for networks in dense environments as it causes increased overhead and latency. This paper deals with the optimization of the BA session management procedure. We propose a modified block acknowledgment session control mechanism which reduces the overhead and latency compared to the original one

AUTOMATED FREQUENCY COORDINATION GUIDED RADIO ASSIGNMENT FOR WI-FI 6E ACCESS POINTS

Within a wireless local area network (WLAN) involving many Institute of Electrical and Electronics Engineers (IEEE) 802.11 access points (APs) in a high-density network, radio operating mode assignments for dual band (2.4 Gigahertz (GHz)/5GHz) or tri-band (2.4GHz/5GHz/6Ghz) capable radios can be provided using various radio assignment techniques in order to optimize radio coverage and reduce interference, which can improve user experience in such a high-density network. Presented herein is technique that re-architects traditional coverage-based radio assignments to adhere with 6GHz standards, high efficiency (HE) station load requirements, and Automated Frequency Coordination (AFC) regulations when determining optimal radio role transformations for Wi-Fi® dual band or tri-band 6GHz capable radios

Time Reversal for Green Radio Communications

WWRF 29th meeting, Berlin.In this article, Time Reversal (TR) signal processing techniques are studied and evaluated over novel realistic green use cases. The principles of Time Reversal and practical uses cases for green communications are designed considering Long Term Evolution-Advanced Coordinated Multi-Point transmission/reception (LTE-A CoMP), Fast Session Transfer (FST) extensions and multi-Radio Access Technology (RAT) architectures foreseen as promising green networks. Dedicated TR use cases are defined in order to identify limit and advantages of TR in a green radio context

Synchronized signaling delivery for broadband 60 GHz in-building optical wireless network based on digital frequency division multiplexing and digital Nyquist shaping

A simple and low-cost synchronized signaling delivery scheme has been proposed for a 60 GHz in-building optical wireless network with 12.7Gbps throughput based on digital frequency division multiplexing and digital Nyquist shaping