Name
Abstract | ||
|---|---|---|
A distributed random access network with K users and one Access Point (AP) is considered. It is assumed that users and the AP are equipped with M and N antennas, respectively. Each user independently decides whether to transmit in a time slot or not. We initially focus on two-user random access networks and characterize the network average Degrees of Freedom (DoF) 1 . For the K-user networks, an upper-bound on the network average DoF is first proposed. Then, it is shown that the proposed upper-bound can be achieved using single stream data transmission for many network configurations. Finally, we show through a few examples that there exist some network configurations where multi-stream data transmission in conjunction with interference alignment is necessary in order to achieve the upper-bound. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/TCOMM.2013.021913.120299 | IEEE Transactions on Communications |
Keywords | Field | DocType |
MIMO communication,subscriber loops,MIMO-MAC,access point,distributed random access network,interference alignment,k-user networks,multi-stream data transmission,single stream data transmission,two-user random access networks,Random access network,degrees of freedom (DoF),multiple access channel,multiple-input multiple-output (MIMO) system | Multi-user MIMO,Data transmission,Computer science,Computer network,MIMO,Stream data,Network Access Device,Channel access method,Interference alignment,Random access | Journal |
Volume | Issue | ISSN |
61 | 5 | 0090-6778 |
Citations | PageRank | References |
2 | 0.38 | 6 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Vahid Pourahmadi | 1 | 2 | 0.38 |
| Abolfazl S. Motahari | 2 | 76 | 5.60 |
| Amir K. Khandani | 3 | 1139 | 92.60 |