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  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E96-C   No.2   pp.171-179
Publication Date: 2013/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E96.C.171
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)
Category: 
Keyword: 
RoF,  DAS,  backhaul network,  OTDM,  WDM-PON,  MIMO,  

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Summary: 
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.