IEEE 802. 15.3d The channel plan defined IEEE Std. 802.15.3d-2017 [1] covers also the bands 296-306 GHz and 318-321 GHz, where specific conditions to ensure protection of EESS. The frequency band 356 to 450 GHz is not covered by the above-mentioned standard. Based on this situation the following potential activities in IEEE 802 might be considered:
IEEE 802. 15.7a - Optical wireless HHI has been working on optical wireless in the SODALES project, and it is also the German representative in the COST 1101 research network OPTICWISE [1] in which researchers across Europe meet regularly to exchange results and to coordinate their activities. At the 7th MGMT/WG Meeting of COST 1101 in Madeira, 19th September 2014, a session was organized starting with an invited speech from Tuncer Baykas about IEEE 802 standardization opportunities, as a possible exploitation path for the COST action results. During the meeting, it was decided after a controversial discussion that the action chair, Xxxx. Xxxxx Xxxxx, contacts IEEE 802.15.7a task group on Optical Camera Communications with the objective to widen its scope and to extend it to optical wireless communications. Xxxx. Xxxxx attended the next task group meeting and the proposal was welcomed, as he was appointed as Vice Technical Editor [2]. From OPTICWISE, the Fraunhofer Institute decided to contribute, and the British company PureLiFi also became active in this field. SODALES has helped define the optical wireless approach, as it is short distance wireless connection, and the approach has created a lot of interesting results. This has contributed to the situation where this technology can now be promoted again and pushed forward, out of the many previous niche applications, towards more promising large-volume applications in future mobile networks, both as an access technology over short distances (which is particularly interesting for the Internet of Things), and as a low-cost backhaul technology for many small cells, which is part of the 5G definitions and will increase the density of access points and in this way the overall capacity in the same unit area. It is hoped that the fast progress of standardization in this area will lead to an accelerated understanding of 5G concepts, such as the C-RAN, and the efficient provisioning of backhaul and front-haul, and that it may also contribute towards maturing these new and unusual concepts “in the sandbox” long before the standardization for wide-area radio-based 5G technologies will be started.
IEEE 802. 1X Revision The IEEE 802.1X standard is the major cornerstone of the eduroam concept. The first edition of this standard is from 2001 and predates the beginning of eduroam (2003). The standard saw a minor revision in 2004. That revision only contained clarifications to the original issue and had little to no impact on actual equipment behaviour. During the timeframe which coincided with GN3's Year 1, the IEEE worked on a major conceptual overhaul of IEEE 802.1X. JRA3 T1 investigated the draft of the new standard in various stages of completion and has fed critical opinions on various details of the upcoming standard into the IEEE balloting process by proxy via a voting member. Three of the major changes in the standard are particularly noteworthy and deserve inclusion in this deliverable. They are described in the next three sections.
IEEE 802. 22 Wireless Regional Area Network (WRAN) is developed by IEEE 802.22 standard that supports digital television broadcasting. This protocol is established to serve small geographical regions and limited number of users that’s why it is subjected as regional [4]. Cognitive radio first network is conducted with this protocol which applied network ability to reuse white spectrum in small geographical areas with minimum interference between network candidates [5]. The technology of cognitive radio that was stated in details on previous researches and is referred to wireless regional area networks that guarantee the spectrum sharing between licensed and unlicensed users with no harmful returns to licensed users; however, this standard supports small power applications like wireless microphone and TV broadcasting (analogue and digital television), this standard had published by IEEE on late 2011 [6],[23]. IEEE 802.22.1 and IEEE 802.22 WG is consecutive standards developed for averting the interference of low power applications and to enhance the previous standard so that some applications of wireless local area networks (WLAN) are also involved to participate this technology. For first instant, IEEE 802.22 begins with point to multiple point communication (P2MP) [7] that applied on digital television network that formed by installing premises attached equipment (PAE) with is connected directly to network base station (base station subsystem BSS) by means of wires. The BSS is responsible to form the network traffic and initiate spectrum management. WRAN based digital television broadcasting with cognitive radio capabilities is working by make PAE to gather the information about channel status (which is so-called as spectrum sensing); with help of signaling capability, [8] gathered information is directed to the base station sub system (BSS) which has the decision-making capabilities for channel allocations and user mobility. It is important to notice here that user assignment to new hole is cauterized and done by base station. However, user needs to be within network coverage in order to participate this facility. Users can only sense the channel and forward information to the higher layer [9].
IEEE 802. 15.3a modifications on S-V model the IEEE committee of UWB channel modeling determined that the LogNor- mal distribution has the best match to the amplitude of the rays [Xxxxxxxx, 2003a]. Furthermore, the final IEEE 802.15.3a model assumes a shadowing term to taking account the effect of NLOS. The comprehensive description on the final model is given in [Xxxxxxxx, 2003a],in which a comparison of model statistics and real channel measurements is also provided.
