TY - GEN
T1 - Spectral efficient cooperative downlink transmission schemes for DCO-OFDM-based optical attocell networks
AU - Kazemi, Hossein
AU - Safari, Majid
AU - Haas, Harald
PY - 2017/3/17
Y1 - 2017/3/17
N2 - In this paper, novel spectral efficient cooperative transmission schemes are proposed for downlink in indoor light-fidelity (Li-Fi) cellular networks, also termed as optical attocell networks. Downlink cooperation builds upon dual-hop decode-and-forward (DF) relaying with the aid of one or two neighboring base stations (BSS). The connections between the source BS and the relay BSS are provided by perfectly aligned visible light communication (VLC) links. Two cooperation protocols are introduced and evaluated, namely, non-orthogonal DF (NDF) and joint transmission with DF (JDF). A multiple access system based on direct current optical orthogonal frequency division multiplexing (DCO-OFDM) with fractional frequency reuse (FFR) is considered. Also, a line-of-sight (LOS) Lambertian propagation model is used for the indoor VLC channel. For each scheme, the signal-to-interference-plus-noise ratio (SINR) and spectral efficiency for user equipment (UE) with random coordinates in an attocell are derived. The average spectral efficiency within an optical attocell is studied using Monte Carlo simulations.
AB - In this paper, novel spectral efficient cooperative transmission schemes are proposed for downlink in indoor light-fidelity (Li-Fi) cellular networks, also termed as optical attocell networks. Downlink cooperation builds upon dual-hop decode-and-forward (DF) relaying with the aid of one or two neighboring base stations (BSS). The connections between the source BS and the relay BSS are provided by perfectly aligned visible light communication (VLC) links. Two cooperation protocols are introduced and evaluated, namely, non-orthogonal DF (NDF) and joint transmission with DF (JDF). A multiple access system based on direct current optical orthogonal frequency division multiplexing (DCO-OFDM) with fractional frequency reuse (FFR) is considered. Also, a line-of-sight (LOS) Lambertian propagation model is used for the indoor VLC channel. For each scheme, the signal-to-interference-plus-noise ratio (SINR) and spectral efficiency for user equipment (UE) with random coordinates in an attocell are derived. The average spectral efficiency within an optical attocell is studied using Monte Carlo simulations.
KW - Decode-and-forward (DF) relaying
KW - Direct current optical orthogonal frequency division multiplexing (DCO-OFDM)
KW - Fractional frequency reuse (FFR)
KW - Light-fidelity (Li-Fi)
KW - Optical attocell networks
KW - Visible light communication (VLC)
UR - http://www.scopus.com/inward/record.url?scp=85017002112&partnerID=8YFLogxK
U2 - 10.1109/VTCFall.2016.7881233
DO - 10.1109/VTCFall.2016.7881233
M3 - Conference contribution
AN - SCOPUS:85017002112
T3 - IEEE VTC, Fall 2016.
BT - 2016 IEEE 84th Vehicular Technology Conference, VTC Fall 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 84th IEEE Vehicular Technology Conference, VTC Fall 2016
Y2 - 18 September 2016 through 21 September 2016
ER -