Radio 2017 - International Workshop on Radio Vortex Wireless Communications

As wireless communications move from the fourth-generation (4G) to the fifth-generation
(5G) and the future 5G-beyond, it is urgent to meet the significantly increasing capacity
demand. However, not only the widely used traditional wireless transmission techniques such
as orthogonal frequency-division multiplexing (OFDM), but also the recent developed new
techniques such as co-frequency co-time full-duplex cannot achieve the boosting capacity
requirements for wireless communications. In other words, it is now very difficult to use the
traditional plane-electromagnetic (PE) wave based wireless communications to satisfy the
ever-lasting capacity demand growing.
Fortunately, the electromagnetic (EM) wave possesses not only linear momentum, but
also angular momentum, which includes the spin angular momentum (SAM) and orbital
angular momentum (OAM). The orbital angular momentum (OAM), which is as a result of a
signal possessing helical phase fronts and has not been well studied yet, is another
important property of EM wave. The OAM-based radio vortex wave has different topological
charges, which are independent and orthogonal to each other, bridging a new way to
significantly increase the capacity of wireless communications using different OAM modes.
Although it is very intriguing to facilitate the OAM based radio vortex transmissions in
future wireless communications and networks, there are a number of important problems
need to be solved before implementing the OAM based radio vortex wireless
communications such as radio vortex signal generation, coding and decoding, resource
allocation, mode-hopping, channel estimation, combination with other capacity-boosting
techniques, etc.
The workshop aims to provide a forum for authors to present advanced and/or early
research results on Orbital-Angular-Momentum (OAM) Based Radio Vortex Wireless
Communications (RowComm) that advance the state of the art and practice in RowComm,
including theoretical principles, tools, applications, systems infrastructure, and test beds for
RowComm.
Topics of Interest (include, but are not limited to)
• OAM signal generation
• OAM signal coding, detection, and decoding
• OAM signal modulation and demodulation
• Resource allocation for RowComm
• OAM-Mode-hopping for anti-jamming
• Multi-mode channel estimation for RowComm
• Quality of service (QoS) provisioning for RowComm
• Inter-mode interference coordination
• MAC protocol for RowComm
• Full-duplex/MIMO combined with OAM
• Mode selection for multiuser communications