Power line enhanced cooperative wireless communications

Abstract

In this paper, we investigate the use of power line communication (PLC) to assist cooperative wireless relaying. We consider a communication scheme that uses the power line to initialize and synchronize wireless amplify-and-forward relays and to broadcast information between the relays. Starting from an analysis of transfer functions and noise measurements of PLC channels in office and residential environments, we propose a power line transmission scheme for the inter-relay-communication and assess the influence of this scheme on wireless relaying. This scheme is based on linear precoded orthogonal frequency-division multiplexing; it is designed to optimally exploit the frequency diversity available on PLC channels. The use of PLC leads to a very flexible way of enhancing wireless communications by plugging in additional relays where they are needed-without additional wiring.

Broadband Transmission and Statistical Performance Properties of Overhead High-Voltage Transmission Networks

“…In According to the picture obtained from their spectral behavior-see Figures 5(a), 5(b), 5(c), 5(d), 5(e), and 5(f), the overhead HV/BPL topologies may be classified into three major channel classes regardless of the overhead HV/BPL channel type examined-either modal or coupling scheme channel-(see also [14,15,24,71] for other MV/BPL and LV/BPL channels)…”

“…(2) As usually done in BPL systems [14,15,24,71], overhead HV/BPL channels are classified into three classes depending on their spectral behavior: "LOS" channels, good channels, and bad channels. HV/BPL transmission in the majority of areas is classified into the good channels class.…”

“…HV/BPL, MV/BPL, and LV/BPL systems need to work in a compatible way (intraoperate) before BPL technology interoperates with other broadband technologies, such as wired (e.g., fiber and DSL) and wireless (e.g., WiFi and WiMax). Based on an IP-based power system, related issues to BPL technology such as compatible frequencies, equipment and signaling, adequate injected power spectral density (IPSD) levels, area coverage, and scalable capacity may be further facilitated, taking into account the specific features of HV/BPL, MV/BPL, and LV/BPL transmission together with the overall system requirements [1,14,24,25,71].…”

Towards Broadband Over Power Lines Systems Integration: Transmission Characteristics of Underground Low-Voltage Distribution Power Lines

“…LV/BPL and MV/BPL systems need to work in a compatible way (intraoperate) before BPL technology interoperates with other broadband technologies, such as wired (e.g., fiber and DSL) and wireless (e.g., WiFi and WiMax). Compatible frequencies, equipment and signaling, adequate injected power spectral density (IPSD) levels, area coverage, and scalable capacity must be ensured, taking the specific features of LV/BPL and MV/BPL transmission into account [1,2,[12][13][14][15][16][17][18][19].…”

“…Recently, new interest arises due to the developments regarding multiple-input multiple-output (MIMO) transmission schemes and intraoperability/interoperability of BPL systems [10][11][12][13]. The need to harmonize LV/BPL with MV/BPL systems (intraoperability) is a necessary prerequisite before investigating cooperative communications between BPL systems and other broadband technologies (interoperability) [14,15].…”