A data-rate adaptable modem solution for millimeter-wave wireless fronthaul networks
Paper in proceedings, 2015

For dense small cell deployment in centralized baseband architecture, wireless fronthaul is a cost efficient and flexible alternative to fiber-based fronthaul links. Due to the available wide bandwidth, millimeter-wave technology is the most promising choice to realize multi-gigabit wireless transmission of the common public radio interface (CPRI). In this paper, we present a novel differential encoding scheme for differential quadrature phase-shift keying (D-QPSK) modulation, which enables data-rate adaptable CPRI transmission without modification of a standard receiver. A multi-rate D-QPSK modulator/demodulator (modem) is implemented and tested for data rates up to 10 Gbps, limited by the bandwidth of the microwave components in use. This modem is verified to fulfill the CPRI specifications with respect to multi-rate, low latency and high system performance. Therefore, it is proposed for the implementation of wireless CPRI links at millimeter-wave bands.

E-band radios

millimeter-wave transmission

D-QPSK

fronthaul

centralized baseband

Multi-rate

differential encoding

Author

Jingjing Chen

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Zhongxia Simon He

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Yinggang Li

Ericsson

Thomas Swahn

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Herbert Zirath

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

2015 IEEE International Conference on Communication Workshop, ICCW 2015

2164-7038 (ISSN)

1-6

Subject Categories

Telecommunications

Communication Systems

Signal Processing

DOI

10.1109/ICCW.2015.7247066

ISBN

978-1-4673-6305-1

More information

Latest update

11/19/2018