| 发明名称 | Network coded data communication | ||
| 摘要 | A data communication involves selecting a group (15) of M multiple source nodes (12, 16) among N multiple source nodes (10, 12, 14, 16) present in a communication system (1) and having data destined for a destination node (30), where 2≦M<N. A relay node (20) network codes data from the selected group (15) of M nodes (12, 16) to form combined, network coded data. This resulting data is sent to towards the destination node (30). The purposeful selection of source nodes (10, 12, 14, 16) in connection with network coding substantially increases the throughput of the communication system (1). | ||
| 申请公布号 | US9425885(B2) | 申请公布日期 | 2016.08.23 |
| 申请号 | US200812937034 | 申请日期 | 2008.04.11 |
| 申请人 | Telefonaktiebolaget LM Ericsson (Publ) | 发明人 | Ben Slimane Slimane;Manssour Jawad;Osseiran Afif |
| 分类号 | H04L12/26;H04B7/14;H04W4/00;H04B7/155;H04L1/00 | 主分类号 | H04L12/26 |
| 代理机构 | Patent Portfolio Builders, PLLC | 代理人 | Patent Portfolio Builders, PLLC |
| 主权项 | 1. A data communication method in a communication system comprising N multiple source nodes each having data destined for a destination node, said method comprising: defining a node number M where 2≦M<N; selecting a group of M multiple source nodes among said N multiple source nodes; network coding, at a relay node of said communication system, the data from said group of M multiple source nodes to form network coded data; and transmitting said network coded data from said relay node to said destination node; wherein said defining comprises defining said group number M to be equal to two; wherein said selecting comprises: calculating, for each pair S(m,n) of source nodes among said N multiple source nodes, a sum capacity C(S(m,n)) of said communication system defined by: C(S(m,n))=log(1+max(Γm,Γn))+log(1+ΓR+min(Γm,Γn))where Γm is a communication quality parameter associated with a first source node of said pair of source nodes, Γn is a communication quality parameter associated with a second source node of said pair of source nodes and ΓR is a communication quality parameter associated with said relay node; andselecting the pair S* of source nodes that maximizes said sum capacity:S*=argmaxC(S(m,n))S(m,n)∈S where S is a set of all possible pairs of source nodes among said N multiple source nodes. | ||
| 地址 | Stockholm SE | ||