Digital Waveform Systems, Inc.

MIMO-CRN Networking System

MIMO-CRN Networking System

The MIMO-CRN Networking System is a “non-linear” digital cellular networking system. The MIMO-CRN Networking System is composed of four major network architecture subsystems. These network architecture subsystems are:

  • Single-Frequency Network (SFN) Subsystem
    		•
  • Delay Tolerant Network (DTN) Subsystem
    		•
  • Wireless Token Ring Protocol (WTRP) Network Subsystem
    		•
  • Wireless Resilient Packet Ring (WRPR) Network Subsystem
    		•

Multiple-Input, Multiple-Output Cellular Radar and Networking (MIMO-CRN) is a new class of cellular digital networking system.

Details of the MIMO-CRN Networking System are presented in the sections below.

Smart City Networking System

MIMO-CRN is envisioned as a cellular, “smart city” networking system. Non-linear code division multiple access (CDMA) spread-spectrum concepts enable high cellular density. In the MIMO-CRN system these codes are referred to as Coded Intermodulation Multiple Access (CIMA) codes. Given this high cellular density characteristic, CIMA codes enable highly robust, bidirectional, adaptive, and disruption-tolerant cellular communications network for “smart city” applications.

Figure 1 illustrates the concept of high cellular density, highly robust, and adaptive networks for “smart city” applications.

Business Development Strategy

MIMO-CRN is envisioned as a future-generation distributed cellular “and” radar networking system. The target application area for the MIMO-CRN Networking System is next-generation cellular high-densification, high-performance cellular and radar networks. MIMO-CRN envisions high data rate (i.e. 100’s of gigabits per second) wireless digital communications markets.

Illustrated in Figure 2, MIMO-CRN supports two forms of connectivity for autonomous vehicles cellular networking systems. These forms of connectivity are:

The MIMO-CRN Networking System envisions new markets for resilient, adaptive, and self-healing autonomous vehicles cellular networking systems.

MIMO-CRN Networking System

Resilient, Adaptive, and Self-Healing Autonomous Vehicles Cellular Networking Systems

 

 

Figure 2: MIMO-CRN Networking System enables Advanced Vehicle-to-Vehicle and Vehicle-to-Network Connectivity

MIMO-CRN enables cooperative, synergistic, and ad-hoc and dynamic networking for next-generation communications, radar, and cellular networking operations. The MIMO-CRN system supports integrated mobility, as well as, serves as a building block for future urban societies, where autonomous vehicles, smart homes and infrastructure synergistically cooperate to create “smart” cities. In support of high-density networking (i.e. densification), MIMO-CRN provides synergistic operations, radar detection, and communications within (intra-system) and between (inter-system) systems of smart nodes. In support of these types of applications, the MIMO-CR system integrates real-time time synchronization with spatial localization. This cellular synchronization architecture enables full networking situational and infrastructure intelligence.

Networking Architecture

The MIMO-CRN Networking System introduces three “innovative” networking concepts. These networking concepts are:

MIMO-CRN aims to realize a highly robust, bidirectional, and disruption-tolerant cellular communications network for “smart city” type applications. The network aims to be dynamic in nature, and to deliver multiple data flows with different priorities (operational voice, command/control, telemetry, various qualities of video flows, and others). MIMO-CRN aims to be bandwidth and power efficient. Quality of Service (QoS) algorithms in a Mobile Ad hoc NETwork (MANET) setting are provided to support an environment where autonomous vehicles, smart homes and infrastructure synergistically cooperate to create “smart” cities.

MIMO-CRN architecture and concepts offers significant advancements in the cellular system’s time and spatial synchronization architectures, waveforms, protocols, and algorithms. Most importantly, the architecture for this system is based on the cellular single-frequency networking (SFN) concepts.

MIMO-CRN is composed of four major network architecture subsystems. These network architecture subsystems are:

Figure 3 below illustrates the proposed the MIMO-CRN protocol hierarchy. MIMO-CRN proposes to integrate these networking protocols into a seamless, novel, and coherent 5G cellular network architecture.

MIMO-CRN Protocol Hierarchy Diagram

 

 

 

Figure 3: MIMO-CRN enables Delay Tolerant, Mobile Ad-Hoc Network (MANET) Capability

In addition to the core 5G IMT-2020 networking protocols, to achieve the robustness and resiliency objectives, the MIMO-CRN system provides an integrated mobile ad-hoc networking (MANET) overlay network. The wireless IEEE 802.5 implementation is referred to as the “wireless token ring protocol” (WTRP). The wireless IEEE 802.17 implementation is referred to as a “wireless resilient packet ring” (WRPR).

A key innovation, of the cellular network architecture, is that cells and/or basestations are mobile. Consequently, basestation positions and locations can be dynamic and on-the-move. The wireless token ring protocol (WTRP) component of the network is used to provide adaptive, dynamic, self-forming, self-healing, and self-organizing mobile ad hoc networking (MANET) capability.

Secondly, a wireless disruption and delay tolerant capability is realized architecturally as a "counter-rotating, dual ring" based on the IEEE 802.17 wireless resilient packet ring network topology. The counter-rotating, dual ring protocol enables the network to maintain mobile basestation-to-basestation connectivity and communications. The wireless counter-rotating, dual ring topology enables innovative disruptive and delay tolerant networking (DTN) algorithms and programs

Single-Frequency Networking (SFN)

The architecture of the MIMO-CRN System integrates the key concepts of cellular single-frequency networking (SFN) with code division multiple access (CDMA) spread-spectrum systems. In the MIMO-CRN System, cellular SFN technology enables advancements in state-of-the-art networking paradigms and concepts for distributed cellular “and” radar networking applications.

Figure 4 below provides a conceptual comparison between the two major cellular network types. These cellular network types are as follows:

MIMO-CRN SFN Cellular Networking Concept

Cellular Multi-Frequency Network (MFN)

(Frequency Reuse Factor = 7)

Cellular Single Frequency Network (SFN)

(Frequency Reuse Factor = 1)

 

 

 

 

Figure 4: MIMO-CRN enables the Key Concepts of SFN Cellular Networking

In comparison to Multi-Frequency Networks, the key characteristics, advantages, and benefits of Single-Frequency Networks are as follows:

SFN concepts enable efficient, synergistic, cooperative, intelligent, and integrated networking that enables high-performance and precise network timing, synchronization, and localization.

Delay Tolerant MANET Networking System

The MIMO-CRN System integrates the 5G IMT-2020 network architecture with the WTRP and WRPR network architecture components. This integrated overlay network architecture enhances the primary 5G IMT-2020 network. The integrated network provides a robust, resilient, and adaptive, self-forming, self-healing, and self-organizing mobile ad-hoc network (MANET) capability.

Wireless Token Ring Protocol (WTRP) Networking System

The MIMO-CRN System implements a wireless token ring protocol (WTRP) subsystem as a medium access control (MAC) method. The system operates per the Token Ring Protocol (TRP) standard, also known as IEEE 802.5. The WTRP network provides basestations-to-basestation control plane messaging such as: handover control, mobility control, and network link state information.

Enhancing the 5G IMT-2020 network architecture, the WTRP network provides the following capabilities:

Wireless Token Ring Protocol (WTRP) Networking System

As a digital wireless networking infrastructure concept, the MIMO-CRN System operates as wireless resilient packet ring (WRPR). The system operates per the Resilient Packet Ring (RPR) standard, also known as IEEE 802.17. The MIMO-CRN System protocol is designed for optical-quality, wireless optimized transport of data traffic. The MIMO-CRN System operates as a optical-quality, wireless resilient packet ring. MIMO-CRN operates as an integrated network providing a robust, high-data rate, resilient, and adaptive, self-forming, self-healing, and self-organizing mobile ad-hoc network (MANET) capability.

As an integrated component of the MIMO-ISS System, MIMO-WRPR operates using the Intermodulation Spread Spectrum (i.e. ISS) waveform system.

The MIMO-CRN System implements a counter-rotating, dual ring, wireless resilient packet ring (WRPR) network topology as a method to provide disruptive and delay tolerant networking (DTN). RPR can be implemented independent of the physical layer modulation technique.

Figure 5 below illustrates the WRPR concepts and signal flow architecture. WRPR implements a concept of dual counter rotating rings called ringlets within the UMTS-LTE network. These ringlets are composed of UMTS-LTE basestation nodes where traffic is to dropped and added to the ring. The WRPR enables the redundant transmission of control plane and user plan messaging. As shown, connections between the stations are bidirectional, rings allow for resilience (a frame can reach its destination even in the presence of a link failure).

MIMO-WRPR Wireless Resilient Packet Ring Concept

 

 

Figure 5: Wireless Resilient Packet Ring enables Disruptive and Delay Tolerant Networking (DTN)

Enhancing the 5G IMT-2020 network architecture, the WRRP network provides the following capabilities:

WRPR uses a three-level class-based traffic priority scheme. The Class of Service (CoS) levels are as follows:

Proprietary

The MIMO-ISS System is proprietary and confidential to Digital Waveform Systems, Incorporated. Detailed information and description of the concepts, algorithms, mathematical formulations, architectural diagrams, signal-flow diagrams, and technologies, of the MIMO-ISS System, can be provided and disclosed subject to mutual non-disclosure agreements.

If you are interested in learning more about the details, specifications, and capabilities of the MIMO-ISS System you can contact us at Digital Waveform Systems, Incorporated.