William Marsh Rice University

Adriana B Flores Miranda

Edward Knightly

A client device includes a processor and an antenna. The client device obtains an announcement that specifies a winning client of a channel contention competition; identifies a group association of the client device using an identity of the winning client; transmits a preamble modulated by an entry of a preamble interference nullification matrix, the entry is based on the group association; and transmits, after transmitting the preamble, a data transmission. The preamble is transmitted at the same time as a second preamble is transmitted by a second client device.

Distributed and scalable physical layer and medium access design for uplink multiuser multiple-input, multiple-output (MU-MIMO) in wireless local area network (WLAN) systems

A method of wireless local area network communication between a client and an access point includes sending, by the client, a client-originated message to the access point over a bidirectional upload channel; receiving, by the client, a client-acknowledgement message from the access point over the bidirectional upload channel; receiving, by the client, an access point-originated message from the access point over a bidirectional download channel that was generated in response to the client-originated message; and sending, by the client, an access point-acknowledgement message to the access point over the bidirectional download channel. The bidirectional download channel is separate from the bidirectional upload channel.

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Houston, TX, United States of America

Adriana B Flores Miranda