US 12,408,109 B1
Relay communication power allocation method and system driven by multi-microgrid operation services
Dong Yue, Nanjing (CN); Chaobin Song, Nanjing (CN); Bo Zhang, Nanjing (CN); and Haiwen Wang, Nanjing (CN)
Assigned to NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Nanjing (CN)
Filed by NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Nanjing (CN)
Filed on Apr. 23, 2025, as Appl. No. 19/186,990.
Claims priority of application No. 202411755502.5 (CN), filed on Dec. 3, 2024.
Int. Cl. H04W 52/02 (2009.01); H04L 43/065 (2022.01); H04L 43/0829 (2022.01); H04W 52/24 (2009.01); G06Q 50/06 (2024.01); H02J 3/32 (2006.01)
CPC H04W 52/0203 (2013.01) [H04L 43/065 (2013.01); H04L 43/0829 (2013.01); H04W 52/243 (2013.01); G06Q 50/06 (2013.01); H02J 3/322 (2020.01)] 4 Claims
OG exemplary drawing
 
1. A relay communication power allocation method driven by multi-microgrid operation services, comprising the following steps:
constructing a real transmission rate model of each microgrid gateway according to a cooperative relay working mode;
constructing a data loss rate model of each microgrid gateway according to the real transmission rate model of each microgrid gateway;
dividing the importance of each microgrid operation service according to the influence of each microgrid operation service on the power of the power grid;
constructing a relay communication power optimization allocation model by using the importance of each microgrid operation service and the data loss rate model of each microgrid gateway; and
solving the relay communication power optimization allocation model by using a successive convex approximation method to obtain the relay communication power optimization allocation result;
wherein the cooperative relay working mode is a decode-and-forward working mode;
the real transmission rate model of each microgrid gateway has a formula of:

OG Complex Work Unit Math
where Ri denotes a real transmission rate model of an i-th microgrid gateway; Wi denotes a channel bandwidth; pi denotes a transmission power from a control center to a relay and a transmission power from the control center to the i-th microgrid gateway; pr,i denotes a transmission power from the relay to the i-th microgrid gateway; N0 denotes Gaussian noise of the channel; I denotes interference; gicg denotes a channel gain from the control center to the i-th microgrid gateway; girg denotes a channel gain from the relay to the i-th microgrid gateway;
the data loss rate model of each microgrid gateway has a formula of:

OG Complex Work Unit Math
where Di denotes a data loss rate model of the i-th microgrid gateway; Ri denotes an expected transmission rate of the i-th microgrid operation service; Ri denotes a real transmission rate model of the i-th microgrid gateway; t denotes a sampling period;
the importance of each microgrid operation service has a formula of:

OG Complex Work Unit Math
where wi denotes an importance coefficient of the i-th microgrid operation service; Pi denotes a power regulation amount of the power grid of the i-th microgrid operation service; P denotes a set of power regulation amounts of the power grid of the microgrid operation service;
the relay communication power optimization allocation model has a formula of:

OG Complex Work Unit Math
the constraints are:

OG Complex Work Unit Math
where wi denotes an importance coefficient of the i-th microgrid operation service; Di denotes a data loss rate model of the i-th microgrid gateway; n denotes the number of the microgrid operation services; Ri denotes an expected transmission rate of the i-th microgrid operation service; pi denotes a transmission power from the control center to the relay and a transmission power from the control center to the i-th microgrid gateway; pr,i denotes a transmission power from the relay to the i-th microgrid gateway; N0 denotes Gaussian noise of the channel; I denotes interference; gicg denotes a channel gain from the control center to the i-th microgrid gateway; girg denotes a channel gain from the relay to the i-th microgrid gateway; t denotes a sampling period; pmax denotes a total power that the relay uses for allocation; gicr denotes a channel gain from the control center to the relay.