About IEICE technical committee on SRW

» Background of SRW

Recently, the research on wireless LAN (WLAN) and wireless PAN (WPAN) has been attacking intentions from all over the world. WLAN aims at about 300Mbps transmission capacity in the range of approximately 100 meters; while WPAN aims at Gbps or mult-Gbps transmission capacity in the range of 10 meters. Japan is not considered in the leading position of the research in this area. Also it is not Japan but USA and Taiwan are leading the market. Lately, because USA is shifting from analogy TV to digital TV, there are efforts trying to extend WLAN to the available bandwidth (TV white space) from this shifting. On the other hand, USA is also prompting the smart grid concept which is based on unlicensed band with very low transmission power. The following are some features of the system.

Compared with cellular systems that stick to the way of base station device communication, Short range WLAN and WPAN systems allow direct transmission from device to device. They are also different in terms of license, channel model, transmission power and communication mode. Especially, the MAC for the network control is totally different. It can be considered that Japan doesn’t accumulate much knowhow in this area. On the other hand, the standardization of the WLAN and WPAN technologies has been moving forward rapidly. Intentions are also given to the above mentioned TV white space technologies. Although Japan has been leading the mobile phone technologies, now it is time for Japan to look at the WLAN and WPAN technologies and business chance of the short range communication systems.

» Purpose of the commitee

The purpose of this domestic conference is to get together researchers from all the related areas to improve the fundamental research, system development and business flexibility for WLAN and WPAN systems. Secondly, given the fact that Japanese young researchers are always focusing on only one area, this conference will provide a channel for the young researchers to understand the whole short range communication system not to be limited in certain technology. Furthermore, for the purpose of the globe competition, it is required to have a channel for the young researchers to exchange information more broadly, the committee of this conference will develop an environment for deep theoretical discussion, and the committee will also set up joint workshop with institutes in other countries to prompt the globalization. The support for standardization is also one of the objectives of the committee.

Research Topics

This domestic conference is focusing on prompting short range wireless communication technologies that apply to WLAN and WPAN systems, it also aims at developing related business models.

Major research fields

» Propagation and Antenna

indoor radio propagation, outdoor radio propagation, propagation in cars, portable (omnidirectional) antenna, beamforming, channel model, MIMO

» Physical Layer

modulation/demodulation, error correction technique, synchronization, equalization, OFDM, MIMO, RF TRX, interference cancellation, radar

» MAC

CSMA/CA, MAC for high speed communication, MAC for wide-coverage sensor network, MAC for medical wireless system, interference avoidance, pico-net, ad-hoc, dynamic spectrum accessc

» Network / Security

machine to machine (M2M) communication, TVWS, smart grid, multi-hop network, near field communication (NFC), wireless sensor network, wireless personal area network (PAN), positioning

» Implementation

ASIC technology, millimeter wave RFCMOS, compound semiconductor RF, low noise RF receiver, low power consumption HW implementation techniques, low power consumption SW coding technique, small and feathery HW implementation technique



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