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Analysis of Wireless Channel Capacity in RoF-DAS over WDM-PON System
Tatsuhiko IWAKUNI Kenji MIYAMOTO Takeshi HIGASHINO Katsutoshi TSUKAMOTO Shozo KOMAKI Takayoshi TASHIRO Youichi FUKADA Jun-ichi KANI Naoto YOSHIMOTO Katsumi IWATSUKI
IEICE TRANSACTIONS on Electronics
Publication Date: 2013/02/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)
RoF, DAS, backhaul network, OTDM, WDM-PON, MIMO,
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Radio on fiber (RoF) – distributed antenna system (DAS) over wavelength division multiplexing – passive optical network (WDM-PON) with multiple – input multiple – output (MIMO) has been proposed as a next generation radio access network (RAN). The system employs optical time division multiplexing (OTDM) over one WDM channel as a backhaul for RAN to flexibly transmit various types of radio air interfaces. To cover a wider wireless service area, the WDM-PON has a combination of double and bus topologies. This paper analyses the channel capacity in the MIMO cell provided by the RoF-DAS over WDM-PON with computer simulation considering noise power added in the RoF link, and discusses the trade-off between losses in RoF and wireless channel appeared in the channel capacity. Then, this paper clarifies a method to derive the optimal cell size to obtain the highest channel capacity.